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.

“Excellent tool for storing, editing, and converting documents”

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 2524810465

Proof data

Record hash (SHA-256)

1353a2b6fcfac197f11f08375dcfbb2da9093a581261bd3d5585aac019c21c4a

Signature (Ed25519, base64)

YlGXU0Fi5k2IbTz7avSxk55iMWJHsLqEzYxv6lDB4ZkRF+T6B/yIK7UajgxzJwTVEn1A4kP979rz1B47vI3MBw==

Merkle root

3e1c67438f658ba7fd015e6979c1bfd82d90efb0848cecbd4d902d6b2ed171d3

Merkle path

["135829ef70267103936eb77a43419553eff49996673b9c44cf465b1d13c750d5","b26386a87fac4bbd34e6662c2f112bdebb06c34f3db56fbe373db48fa32dd230","5f727e13331accbc422f2e7ac3bde6cee3ea5bef3875dbfe5107d36f21cebd6f","263c9aa3aa176c1d7b285f779f453ffe057e7c87f57530c4890e08c145e65825","d6bf9af7fb72fb4390930b306f603ad114055570bc199857984226df1ecb5cf2","98bd13ad527afcd2014c9d019acc8e8e5e96713edf665fc5ba8063a71867a3c2","aae2fb9fbd5069c584117fa31db3afd944eff706b348d2ecc8c79bf54a1fe190","6d3a72857ac985aa1d2fe787c09cdd3a5fe7587439f35a88ebcc17755ec8684c","fbdaf668f70b6b4c41263d453f2fe2c45bd580d026216eee74710333dbcd6a67","48192ae99830923738565ebfb50c09262a6afe241b5ca5cbdbd85edad948901f","997b6351fa60fc1e13129b1dca51762949dc6ce114f1b2161d9b7a8244fd6ffb","a84f19b73d0745b184029b69cf9f25565f40d942048a82955efda21766296b26","fb183b6f6365289d9e03a04ab6a5ee3d62de93cb7a6ce2bfeccdcb2ed00acf48","0790a9ec23117ba3e0ba9a310290906a4f1d2b0055d4607b106ab21651087c1d","db72b82118c1e08b77018004fa72584377d6eccdc4c75ec19bef6a78273f75c9"]

Anchored

2026-08-20

Public log entry

search.sigstore.dev, log index 2524810465 · entry 108e9186e8c5677af074…

Expected log hash

129b219cb6155ac24569a579c61e8fc9cc2d89305732944b8849d5e719dfd073 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":"v1787193927339","kind":"published-quote","locale":"en","page":"product:acrobat/convert-pdf/en","quote":"Excellent tool for storing, editing, and converting documents","rating":5,"review_date":"2026-07-20","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 (3e1c67438f65…), 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.