Evidence packet — MHRA AI

One row of this record, assembled so it can be taken somewhere else: what the publisher published, where this record read it, what it hashed, and what changed between two readings it retained. Generated 2026-09-18. It carries no assessment of what the document requires and no reading of what any change means.

The packet, in three formats

Each is the same object. /packet/mhra-ai.json carries every field; /packet/mhra-ai.md is the same content as plain text; and /packet/mhra-ai.zip is an archive of those two together with this row’s slice of the published leaf file and the published root. Every byte in the archive is served at its own address as well; it originates nothing.

Source

Identity as this record holds it for MHRA AI
Field	Value
Identifier	`mhra-ai`
Title	MHRA publications on AI and software as a medical device
Jurisdiction	UK
Address requested	https://www.gov.uk/government/publications/software-and-artificial-intelligence-ai-as-a-medical-device
Address answered	https://www.gov.uk/government/publications/software-and-artificial-intelligence-ai-as-a-medical-device
Observed cadence	monthly
Row	`/r/mhra-ai`

 
The address a request ANSWERED at is this record’s address for the
    row. The address it aimed at is testimony and is carried beside it, because
    a redirect is a publisher’s own statement about what supersedes what.
 Publisher
  The body, and the origin that answered Field Value
  Authority  Medicines and Healthcare products Regulatory Agency
 Origin host  —
 Origin read from  —
 Standards body  —
 Standards body read from  —
 
 
 No origin host is recorded for this row. The authority named above is the body; the host is a fact about which origin answered, and this row does not carry one.
 Type
  The class the publisher states, and the kind of record this is Field Value
  Class, as the publisher states it  —
 Read from  —
 Source kind, recorded here  document
 Source type, recorded here  document
 Record tier  core
 
 
  No class statement by the publisher is recorded for this row, so this packet states none. That is an absent reading rather than a document without a class. 
 Status, and the dates it is held with
  The status this record holds for this document, with its dates Field Value
  Status  final 
 Stated as of  —
 In effect from  —
 Last changed  —
 Status read from  —
 Status withdrawn  —
 Decay class  live 
 
 
 
These are the dates this record holds for the document’s own status.
    They state nothing about which products or activities the document reaches;
    that is a judgment, and this record does not make one.
 Verification
  The act behind the status above, where one is recorded Field Value
  State  ●  verified
 What the state states  checked against the primary source by a person
 Checked by  human
 Check date  2026-07-30
 Last verified  2026-07-30
 
 
 Terms
  What this record does with the text of this document Field Value
  Licence class  open
 Text retained here  yes
 A quotation appears in this record  yes
 Snapshot retained here  yes
 
 
  Readings with retained text
  Each distinct digest of the normalised text this record
          retained, addressed at the reading that first carried it  Reading  Days seen  Digest   Class  Answered at  Bytes  
    2026-07-30  #5  44  — last  2026-09-18  110d6c8e7c56695c…  document  https://www.gov.uk/government/publications/software-and-artificial-intelligence-ai-as-a-medical-device  3,134  
   2026-09-08  #1  1  d4b6bb0450a88d7f…  document  https://www.gov.uk/government/publications/software-and-artificial-intelligence-ai-as-a-medical-device  3,181  
   2026-09-09  #1  1  0d4b2abb3a4fdc70…  document  https://www.gov.uk/government/publications/software-and-artificial-intelligence-ai-as-a-medical-device  3,181  
   2026-09-10  #1  1  8fc70fdfe3a5f042…  document  https://www.gov.uk/government/publications/software-and-artificial-intelligence-ai-as-a-medical-device  3,181  
   2026-09-11  #1  1  95ff73c7efa26058…  document  https://www.gov.uk/government/publications/software-and-artificial-intelligence-ai-as-a-medical-device  3,181  
   2026-09-12  #1  1  21fde7c052b40070…  document  https://www.gov.uk/government/publications/software-and-artificial-intelligence-ai-as-a-medical-device  3,181  
   2026-09-13  #1  1  d722379e4120a9c4…  document  https://www.gov.uk/government/publications/software-and-artificial-intelligence-ai-as-a-medical-device  3,181  
   2026-09-14  #1  1  f61cf3af50631aaf…  document  https://www.gov.uk/government/publications/software-and-artificial-intelligence-ai-as-a-medical-device  3,181  
 
 
Digests on this row: 8. With retained text:
 8. Without:
 0. Series state:
 comparable.
  These readings interleave: at least one digest was observed again after a later one had already appeared, so they are the digests this record has seen, in the order it first saw each, and not a sequence of versions.
 
A digest is over the NORMALISED text of a reading, not over the bytes
    served: scripts, comments, navigation and page chrome are removed and tags
    are stripped before hashing. Hashing a source as served will not reproduce
    these digests. The full digest for every reading is in the packet; the
    column above is shortened for width.
 Changes
 One entry per consecutive pair of retained readings, in the order this record first saw each digest. Every entry carries a measured difference or the first condition that refused one. A refused entry was never tested against the conditions after it.
   7 transition(s) between the
 8 reading(s) above:
 7 carry a measured difference,
 0 are withheld above the word ceiling,
 0 are refused by a rule,
 0 differ in the digest and not in the words, and
 0 could not be measured.
   2026-07-30  #5  →  2026-09-08  #1 
    The two readings, and the verdict on the pair Field Value
  Earlier digest  110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
 Later digest  d4b6bb0450a88d7f3c23a74b60b24949f0dd71b7d974a7fb09f142095c33384b
 Verdict  difference
 Condition  —
 Words differing  4
 Removed  0
 Added  4
 The comparison entry  the words that differ are published there
 
 
 
  2026-09-08  #1  →  2026-09-09  #1 
    The two readings, and the verdict on the pair Field Value
  Earlier digest  d4b6bb0450a88d7f3c23a74b60b24949f0dd71b7d974a7fb09f142095c33384b
 Later digest  0d4b2abb3a4fdc70b67096c0eafb5ed0e5dfa726bbdbfcb5797a712757b30aac
 Verdict  difference
 Condition  —
 Words differing  2
 Removed  1
 Added  1
 The comparison entry  the words that differ are published there
 
 
 
  2026-09-09  #1  →  2026-09-10  #1 
    The two readings, and the verdict on the pair Field Value
  Earlier digest  0d4b2abb3a4fdc70b67096c0eafb5ed0e5dfa726bbdbfcb5797a712757b30aac
 Later digest  8fc70fdfe3a5f042bff55fa7c11a67c77b2f13f76b6f8eec3000728700c089c2
 Verdict  difference
 Condition  —
 Words differing  2
 Removed  1
 Added  1
 The comparison entry  the words that differ are published there
 
 
 
  2026-09-10  #1  →  2026-09-11  #1 
    The two readings, and the verdict on the pair Field Value
  Earlier digest  8fc70fdfe3a5f042bff55fa7c11a67c77b2f13f76b6f8eec3000728700c089c2
 Later digest  95ff73c7efa26058465bf11ac1d968a97a02f9c9915ae31e4fa989a914853f7a
 Verdict  difference
 Condition  —
 Words differing  2
 Removed  1
 Added  1
 The comparison entry  the words that differ are published there
 
 
 
  2026-09-11  #1  →  2026-09-12  #1 
    The two readings, and the verdict on the pair Field Value
  Earlier digest  95ff73c7efa26058465bf11ac1d968a97a02f9c9915ae31e4fa989a914853f7a
 Later digest  21fde7c052b400702464b718b815337971e5757ea8ed070bfbd569dafc49b35d
 Verdict  difference
 Condition  —
 Words differing  2
 Removed  1
 Added  1
 The comparison entry  the words that differ are published there
 
 
 
  2026-09-12  #1  →  2026-09-13  #1 
    The two readings, and the verdict on the pair Field Value
  Earlier digest  21fde7c052b400702464b718b815337971e5757ea8ed070bfbd569dafc49b35d
 Later digest  d722379e4120a9c4c8f76d1bb52c7a08e79bd5af11d92ac6ba69c1b31cde2403
 Verdict  difference
 Condition  —
 Words differing  2
 Removed  1
 Added  1
 The comparison entry  the words that differ are published there
 
 
 
  2026-09-13  #1  →  2026-09-14  #1 
    The two readings, and the verdict on the pair Field Value
  Earlier digest  d722379e4120a9c4c8f76d1bb52c7a08e79bd5af11d92ac6ba69c1b31cde2403
 Later digest  f61cf3af50631aaf06a7a9d0cb561121fc90f598cf503b9a402dc4393c643fec
 Verdict  difference
 Condition  —
 Words differing  2
 Removed  1
 Added  1
 The comparison entry  the words that differ are published there
 
 
 
 
A difference here is a difference between two readings this record retained.
    It is not a statement about what the document requires, about what changed
    in substance, or about whether anything follows from it.
 Integrity
  The root this packet was generated against Field Value
  Root  fd0980cf7ca42518ff7457b92b075df16163772d48d6f75e546b4869fe7bedab
 Leaves the root covers  5,393
 Algorithm  SHA-256 over sorted `id|date|content_hash` lines, pairwise; an odd final node is promoted, never doubled.
 Fixed on  2026-09-18
 Root published at  /integrity/root.txt
 Leaves published at  /integrity/leaves.txt
 The commands  the verification page
 Leaf lines for this row  51
 
 
 The root is over every leaf line the record holds, not over the lines below. Reducing it needs the published file, which is served whole at the address named here together with the command that reduces it. These lines are this row's own slice of that file, copied verbatim.
  mhra-ai|2026-07-30|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-07-31|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-01|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-02|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-03|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-04|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-05|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-06|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-07|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-08|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-09|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-10|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-11|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-12|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-13|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-14|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-15|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-16|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-17|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-18|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-19|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-20|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-21|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-22|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-23|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-24|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-25|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-26|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-27|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-28|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-29|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-30|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-08-31|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-09-01|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-09-02|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-09-03|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-09-04|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-09-05|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-09-06|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-09-07|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-09-08|d4b6bb0450a88d7f3c23a74b60b24949f0dd71b7d974a7fb09f142095c33384b
mhra-ai|2026-09-09|0d4b2abb3a4fdc70b67096c0eafb5ed0e5dfa726bbdbfcb5797a712757b30aac
mhra-ai|2026-09-10|8fc70fdfe3a5f042bff55fa7c11a67c77b2f13f76b6f8eec3000728700c089c2
mhra-ai|2026-09-11|95ff73c7efa26058465bf11ac1d968a97a02f9c9915ae31e4fa989a914853f7a
mhra-ai|2026-09-12|21fde7c052b400702464b718b815337971e5757ea8ed070bfbd569dafc49b35d
mhra-ai|2026-09-13|d722379e4120a9c4c8f76d1bb52c7a08e79bd5af11d92ac6ba69c1b31cde2403
mhra-ai|2026-09-14|f61cf3af50631aaf06a7a9d0cb561121fc90f598cf503b9a402dc4393c643fec
mhra-ai|2026-09-15|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-09-16|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-09-17|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
mhra-ai|2026-09-18|110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2
 What this packet does not carry
   the words that differ
 A count of a difference is in this packet; the words are not. They are a publisher's text, and this record checks borrowed text only on the surfaces it enumerates — a packet carrying spans under a key those checks do not read would be borrowed text nothing verifies. Each change names the comparison entry for the same pair, and says which of the two is at that address: the words, where a difference was measured and is inside the word ceiling; otherwise the same condition this entry names, with no text of the document.
  this records own prose
 The row's summary and its account of an unresolved address are this archive's own voice. They are leads and not evidence, however accurate, because a faithful paraphrase is indistinguishable from evidence while remaining ours. They are published on the row's page and are not here.
  any field that would characterise a change
 No score, no rank, no ordering by judgment, no reading of what a change means and no word for how much of it counts. A packet is evidence taken elsewhere, and a field characterising it would be an opinion with digests attached.
  a recomputed root
 The integrity block states the root this record published and the leaf lines for this row. It computes no root of its own: two numbers this record produced, compared with each other, check nothing.
  
 The conditions, in the order they are evaluated
 
A change names the FIRST condition that fired and was never tested against
    the ones after it, so a condition naming no change here is not a condition
    this row passed. Not reached is not none:
 Three of the conditions belong to the form of the comparison that resolves two dates. Every comparison in this packet is formed from readings addressed by the key the store gives them, so those three are never evaluated here: their absence from the entries above records that they were not tested, rather than that they were tested and did not fire. 
  Each condition, how many of this row’s
 7 transition(s) it refused, and what it
      states  Condition  Changes  What it states  
  licence-restricted  none  No text from this document appears on this site, so no difference between two readings of it is shown either. The digests, the dates and the addresses are the record for this row.  
 licence-unread  none  No reading of the terms this source states is recorded for the row. That is an absent reading rather than an absent term, and the row is handled here exactly as a restricted one until a reading is recorded.  
 date-not-observed  not reached  No observation of this row on that day holds retained text.  
 date-not-unique  not reached  That day holds more than one distinct retained digest for this row, so a date alone does not name one observation. The addressed form — the day and the sequence within it — does.  
 one-point  not reached  Both dates resolve to the same observation.  
 referent-unclassified  none  The class of one of these observations could not be read, so neither was shown to be an observation of the document itself.  
 referent-class  none  One of these observations is not of the document. A listing page that names the document and the document are different subjects, and a difference between them is not a difference in the document.  
 referent-normalisation  none  These two digests were taken over different kinds of text — one over markup, one over prose extracted from a file — so the words they yield differ for a reason that is not the publisher’s.  
 referent-address  none  These two observations answered at different addresses. A difference between them is at least in part a difference between two pages.  
 text-not-retained  none  No normalised text is held here for one of these observations, so there is nothing on this side to compare.  
 snapshot-unreadable  none  Normalised text is recorded for one of these observations and could not be read from this record.  
 span-unverified  none  A span this comparison would have shown could not be found, word for word and in that order, in the retained text it was drawn from. The comparison is withheld rather than shown: a phrase assembled out of words a publisher did not write next to each other is a fabricated measurement of what the publisher wrote.  
 over-ceiling  none  A faithful difference is longer than the word ceiling this site publishes under. It is withheld whole rather than cut to fit: a shortened quote is a fabricated measurement of what a publisher wrote. The figures below are counts of the difference, not the difference.

The body, and the origin that answered
Field	Value
Authority	Medicines and Healthcare products Regulatory Agency
Origin host	—
Origin read from	—
Standards body	—
Standards body read from	—

The class the publisher states, and the kind of record this is
Field	Value
Class, as the publisher states it	—
Read from	—
Source kind, recorded here	`document`
Source type, recorded here	`document`
Record tier	`core`

The status this record holds for this document, with its dates
Field	Value
Status	`final`
Stated as of	—
In effect from	—
Last changed	—
Status read from	—
Status withdrawn	—
Decay class	`live`

The act behind the status above, where one is recorded
Field	Value
State	verified
What the state states	checked against the primary source by a person
Checked by	`human`
Check date	2026-07-30
Last verified	2026-07-30

What this record does with the text of this document
Field	Value
Licence class	`open`
Text retained here	yes
A quotation appears in this record	yes
Snapshot retained here	yes

Each distinct digest of the normalised text this record retained, addressed at the reading that first carried it
Reading	Days seen	Digest	Class	Answered at	Bytes
2026-07-30 #5	44 — last 2026-09-18	`110d6c8e7c56695c…`	document	https://www.gov.uk/government/publications/software-and-artificial-intelligence-ai-as-a-medical-device	3,134
2026-09-08 #1	1	`d4b6bb0450a88d7f…`	document	https://www.gov.uk/government/publications/software-and-artificial-intelligence-ai-as-a-medical-device	3,181
2026-09-09 #1	1	`0d4b2abb3a4fdc70…`	document	https://www.gov.uk/government/publications/software-and-artificial-intelligence-ai-as-a-medical-device	3,181
2026-09-10 #1	1	`8fc70fdfe3a5f042…`	document	https://www.gov.uk/government/publications/software-and-artificial-intelligence-ai-as-a-medical-device	3,181
2026-09-11 #1	1	`95ff73c7efa26058…`	document	https://www.gov.uk/government/publications/software-and-artificial-intelligence-ai-as-a-medical-device	3,181
2026-09-12 #1	1	`21fde7c052b40070…`	document	https://www.gov.uk/government/publications/software-and-artificial-intelligence-ai-as-a-medical-device	3,181
2026-09-13 #1	1	`d722379e4120a9c4…`	document	https://www.gov.uk/government/publications/software-and-artificial-intelligence-ai-as-a-medical-device	3,181
2026-09-14 #1	1	`f61cf3af50631aaf…`	document	https://www.gov.uk/government/publications/software-and-artificial-intelligence-ai-as-a-medical-device	3,181

The two readings, and the verdict on the pair
Field	Value
Earlier digest	`110d6c8e7c56695c1d9d6e142f6bbef244d128fd9a9a43aac8178a00bfdb04d2`
Later digest	`d4b6bb0450a88d7f3c23a74b60b24949f0dd71b7d974a7fb09f142095c33384b`
Verdict	`difference`
Condition	—
Words differing	4
Removed	0
Added	4
The comparison entry	the words that differ are published there

The two readings, and the verdict on the pair
Field	Value
Earlier digest	`d4b6bb0450a88d7f3c23a74b60b24949f0dd71b7d974a7fb09f142095c33384b`
Later digest	`0d4b2abb3a4fdc70b67096c0eafb5ed0e5dfa726bbdbfcb5797a712757b30aac`
Verdict	`difference`
Condition	—
Words differing	2
Removed	1
Added	1
The comparison entry	the words that differ are published there

The two readings, and the verdict on the pair
Field	Value
Earlier digest	`0d4b2abb3a4fdc70b67096c0eafb5ed0e5dfa726bbdbfcb5797a712757b30aac`
Later digest	`8fc70fdfe3a5f042bff55fa7c11a67c77b2f13f76b6f8eec3000728700c089c2`
Verdict	`difference`
Condition	—
Words differing	2
Removed	1
Added	1
The comparison entry	the words that differ are published there

The two readings, and the verdict on the pair
Field	Value
Earlier digest	`8fc70fdfe3a5f042bff55fa7c11a67c77b2f13f76b6f8eec3000728700c089c2`
Later digest	`95ff73c7efa26058465bf11ac1d968a97a02f9c9915ae31e4fa989a914853f7a`
Verdict	`difference`
Condition	—
Words differing	2
Removed	1
Added	1
The comparison entry	the words that differ are published there

The two readings, and the verdict on the pair
Field	Value
Earlier digest	`95ff73c7efa26058465bf11ac1d968a97a02f9c9915ae31e4fa989a914853f7a`
Later digest	`21fde7c052b400702464b718b815337971e5757ea8ed070bfbd569dafc49b35d`
Verdict	`difference`
Condition	—
Words differing	2
Removed	1
Added	1
The comparison entry	the words that differ are published there

The two readings, and the verdict on the pair
Field	Value
Earlier digest	`21fde7c052b400702464b718b815337971e5757ea8ed070bfbd569dafc49b35d`
Later digest	`d722379e4120a9c4c8f76d1bb52c7a08e79bd5af11d92ac6ba69c1b31cde2403`
Verdict	`difference`
Condition	—
Words differing	2
Removed	1
Added	1
The comparison entry	the words that differ are published there

The two readings, and the verdict on the pair
Field	Value
Earlier digest	`d722379e4120a9c4c8f76d1bb52c7a08e79bd5af11d92ac6ba69c1b31cde2403`
Later digest	`f61cf3af50631aaf06a7a9d0cb561121fc90f598cf503b9a402dc4393c643fec`
Verdict	`difference`
Condition	—
Words differing	2
Removed	1
Added	1
The comparison entry	the words that differ are published there

The root this packet was generated against
Field	Value
Root	`fd0980cf7ca42518ff7457b92b075df16163772d48d6f75e546b4869fe7bedab`
Leaves the root covers	5,393
Algorithm	SHA-256 over sorted `id\|date\|content_hash` lines, pairwise; an odd final node is promoted, never doubled.
Fixed on	2026-09-18
Root published at	`/integrity/root.txt`
Leaves published at	`/integrity/leaves.txt`
The commands	the verification page
Leaf lines for this row	51

Each condition, how many of this row’s 7 transition(s) it refused, and what it states
Condition	Changes	What it states
`licence-restricted`	none	No text from this document appears on this site, so no difference between two readings of it is shown either. The digests, the dates and the addresses are the record for this row.
`licence-unread`	none	No reading of the terms this source states is recorded for the row. That is an absent reading rather than an absent term, and the row is handled here exactly as a restricted one until a reading is recorded.
`date-not-observed`	not reached	No observation of this row on that day holds retained text.
`date-not-unique`	not reached	That day holds more than one distinct retained digest for this row, so a date alone does not name one observation. The addressed form — the day and the sequence within it — does.
`one-point`	not reached	Both dates resolve to the same observation.
`referent-unclassified`	none	The class of one of these observations could not be read, so neither was shown to be an observation of the document itself.
`referent-class`	none	One of these observations is not of the document. A listing page that names the document and the document are different subjects, and a difference between them is not a difference in the document.
`referent-normalisation`	none	These two digests were taken over different kinds of text — one over markup, one over prose extracted from a file — so the words they yield differ for a reason that is not the publisher’s.
`referent-address`	none	These two observations answered at different addresses. A difference between them is at least in part a difference between two pages.
`text-not-retained`	none	No normalised text is held here for one of these observations, so there is nothing on this side to compare.
`snapshot-unreadable`	none	Normalised text is recorded for one of these observations and could not be read from this record.
`span-unverified`	none	A span this comparison would have shown could not be found, word for word and in that order, in the retained text it was drawn from. The comparison is withheld rather than shown: a phrase assembled out of words a publisher did not write next to each other is a fabricated measurement of what the publisher wrote.
`over-ceiling`	none	A faithful difference is longer than the word ceiling this site publishes under. It is withheld whole rather than cut to fit: a shortened quote is a fabricated measurement of what a publisher wrote. The figures below are counts of the difference, not the difference.


Word ceiling: 14. Where a faithful difference is longer
    than that, the verdict is withheld and no words are published
    for it: a shortened span is a fabricated measurement of what a publisher
    wrote, so it is withheld whole rather than cut to fit.
 How this record is built.

Last updated: 18 September 2026