Quote verification

This proves the quote below is recorded by Citatio exactly as displayed and has not been altered since it was committed and anchored. It documents Citatio's crawl observation; it does not imply endorsement by the source platform. The quote links to the original review.

“Can't even assign documents without paying.”

Checks (re-run on this request)

• ✓ Signature — Ed25519 signature over the record hash, verified against the public key at /.well-known/citatio-signing.json
• ✓ Merkle inclusion — Leaf recomputed through the sibling path to the anchored root
• ✓ Public transparency log — Sigstore Rekor log index 2514967984

Proof data

Record hash (SHA-256)

6f1b1cffacc10b12d57716c1134abbde192fdab3457d0186ea943f0b07d1557d

Signature (Ed25519, base64)

mzn2L313pPCaV7qNjWBd+1w7IExIeYzSgdWwpODk8e9kh2R7aSqUeqY6anz3HoFwL/GbrJnm1yTo9wEwO4r4CQ==

Merkle root

9ddf6b9053b6e5e7a2f15ee7f3bfc8dfb72c48a1917ae5b7e553033e3ded6523

Merkle path

["6f20942fa037ad88adf1eca26cdff29a6a1b21269398ea0aee0a1a1d13e720bb","bfe71f22fe892fc929feb1f9393766f514ea5a6016e2fa1ff1e86794de864b0e","3d22b93f29e235bb32d8f1116b1dfe13c27c431e5dadfe777391b2a81e647bda","b641614a9493ca0370a84b1d8b72b3bc0a58ee6c9c13badc07f4e732a0502646","8daea34ef1319c9a13aa675158acc361891752eacc5853fbdf9482d2fa4de7f2","eaa76d9c1eeb8a62108356d44c3e901c1943c2c0116e2e01d38a3fbc9b5c3ae9","5a314552acc5734f298d929004954288a38a22c61110dfcdf094d35c8838681f","1e45f8fb6dd8135122b7ac3359809015785f62ccf61466451370c92f83ea4c7f","9308be82d0ed43be31cd4b95dfde155d52b1a8b39350ee2fc8b31dea950916f0","a9bc2a93d5c843f01b1a2d9907a72f736d553ec1c744770a12e73bd5ecca2093","bcd97fed11e40acabc9094d6e48a59bb94f71d25811319fbeb8905370f330b8b","2b6dee3749b82f13b3b8a641bbe3341e0b73743d28edcad040b0254dae05ac25","a21260a3b3feca1d6975bcdc8cefc8114d0a842f3a7e63f8b9f1b1daec35bd2a","ea40ae0189ccbe6f115902554a87d5a76ecff9d4f22c2848cf6df598f3744e11","50c4eca268fbb41f8c6bc36d8a5d1b6cc09733d96f0fb33e6cb584096c56f695"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514967984 · entry 108e9186e8c5677a902c…

Expected log hash

be0cb34bbab326d10b25013c37c9294b14554a6c6e9fac3dc68c06dc2c3c60e7 The log entry's spec.data.hash.value must equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm.

Canonical record

{"dataset_version":"v1787135269737","kind":"published-quote","locale":"en","page":"product:acrobat/sign-pdf/en","quote":"Can't even assign documents without paying.","rating":1,"review_date":"2026-08-10","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (9ddf6b9053b6…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. Locally, without any Citatio infrastructure: SHA-256 the canonical record (must equal the record hash), verify the Ed25519 signature against the public key, and fold the hash through the Merkle path (sorted-pair SHA-256) to reach the anchored root.