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.

“Try saving a document - I dare you.”

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 2542879916

Proof data

Record hash (SHA-256)

5e70fdaa7fb75ee893accfeb8640fbc051988b18ec35258ac1ea07ac39a5bbff

Signature (Ed25519, base64)

fDfdTntqHQvMU/L+uJmplImv2HH0c0VVOS1N7AiYa3BQZ6W83wJ5cVgQq+6uA1feP+Q8+PaQNZzSrK6Ycr5CCQ==

Merkle root

681242bb8cfa94d3b60cc06de1bbe3e5e124dc1675276b11df0aaabc9faee58c

Merkle path

["5e6e65b266b5ee870a234a5c4cc4d860ef579bda175c9b1d4798ecffbed4f7b0","07198d525a6bb2732989ab1e3a046f8fbed9651ed02787402cdcb9bb67c7a14a","fd575afa0aa8db1b7ae49a8dbd2409829770d1bcd6b2b2a5017cc3a59276099b","a8a29bc8d21ce30db796ee76aad3433ad5f35c98fcf695c6e0fcc1bcc415878b","138436da38e3086f6efee94c74426c49943c50b6dfb1f2c395daf4cdc9cf6a9a","9c44c18bca818e327faef23b65d0296b8d0dad6abf37bafb659d474bca4f90a3","e5404feb1ef5af8bcf8a3689235110cf118f3609b1bb362148bf57cb9a0205b2","555db8ab834d2dfa6de7ff5f47b8bfa607df6fea2b7dac09cf7eea8e3b6d87b4","e39e432ffdc70d4d5cecf3b944a747a9e285510cd91b353eefac7a42709c305b","3339e9a6630a34e31ebf92f2b518efff108f49bef0de0d62a7786d8dc04e757e","e9a6998f64f7b3d0001a4bf98af40c68b2a853219e0332ec78e6bd964e07c2dd","130e56dc0be4f0d6a22430c0d78a392d35eb8f7eaf006ec8da1b5a08e3bd3806","ca35c0fb2a839613499bd489c6b0c2aaacd771cea479126a5506cbbc9ba09ce1","018848b1e64bb342ebfcf3461012f852a9938ad88239203d89ee764353ea1567","78eca2193b177c5ad7546ff5d365dd6cb79efa278dddff5151740888f319c0e5"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2542879916 · entry 108e9186e8c5677a2329…

Expected log hash

8337812f20bf1207a3c96eed87ab975d7e92ac1421dcded24507b32e456b788f 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":"v1787282728402","kind":"published-quote","locale":"en","page":"product:acrobat/sign-pdf/en","quote":"Try saving a document - I dare you.","rating":1,"review_date":"2026-07-30","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 (681242bb8cfa…), 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.