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.

“The photo book turned out very nice.”

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 2514476227

Proof data

Record hash (SHA-256)

5f038f666ff0f581d308783a94e4c434ad68a8b92152980d07473343da2c4f7b

Signature (Ed25519, base64)

f4CTHJPKFT3PATPpNOxTvhkb1v8F97UnKynF0kVVCVMY3WdC7wLZtVx0gSWGWh0VO43P9zn5n4RW+AoGtN1WAw==

Merkle root

a086f9fa8309b32cad6e06b6c84c12133a405483807f462eafed4cabc6f3fb99

Merkle path

["5f0923ff3b229c4fa60b2d4d5c33b603a4bac362ce74567cbc01cfe1661a4cd7","7cb98b3a9b948c53493162972845f83038dd8f7cc945ced292ceec195cb1f070","65e36786870659b2a327fd70f13c0487dcfcaef29037283ec3ff396a0fdd3c0f","d289bbfbdb874c968be8f68a57084dd6718c43e6c05917d695e199732f4e1523","8ad4c8499eb572b56445bf0d627f0756ed0a2e9b719c3d6396ed554de92435e0","7fbca90dac5c391102d21b34a2f16eaa1f0622eaf642dab851dd8475af1cc4dd","07078435b82e83fe1fd5560ad1583542eea49b353ceb28bc36ff5128f323ae7f","48bf098c94379b970fca0432e97fe2e48db379b9b8b944ddcd9c557088db052a","a8892022df96cea2d8773d235fca9f70ced0a3854e9bd493a358263f3de9c3b7","e24c12cd55876dca9f444775f2e4d42b2a7b223e19cfdca9c8a82ca114212a0a","423c033c40ba143c6f84aa2a773cf83469afd70fc0d9aa701605d7ae7efb335c","246afafffca2f7633ac3b302d7076540ed8eb1b54bcdd20ea0afda4f6f41b399","c1423a4d1e3405e61a7dfa0f9f0d35446d77e6ae8a2a30431655b9bbf5a67719","1d7676f67710cf1152e64179021560b173262f0f0c11c7101c22e9929c376319","d4cf3fd862731bc6a1728d66b360c0434f801f84e015a828556d2731bd771b26"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514476227 · entry 108e9186e8c5677ab19c…

Expected log hash

9a346357c8991b17bced8f12238c2332c4ac3078c0d9a283ee00f82b3c69be66 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":"v1787129084398","kind":"published-quote","locale":"en","page":"product:pixum/fotobuch/en","quote":"The photo book turned out very nice.","rating":5,"review_date":"2026-01-23","source":"Trusted Shops","source_url":"https://www.trustedshops.ch/bewertung/info_X3DE729F568C455BB31536436C1CD5BB2.html","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 (a086f9fa8309…), 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.