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 has become beautiful, my daughter and son-in-law were impressed.”

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 3668087860

Proof data

Record hash (SHA-256)

029a8f63f538c7b699e43a3618eab98383176a41e1e8f4604063537f01210a06

Signature (Ed25519, base64)

1sx29xoKJ9FbttPASWrXUkkY1TpHePjNtY1pM6214fUsrFLYtdv54ebkXGqCTofpUbzopB74GWXWWiW8K2sGDw==

Merkle root

1047936f87a157b28c078afc7a20c2628bbc08f0196f675d74b106da179f0837

Merkle path

["029dc80ba84c9d1746a2f0056305caf51f7add2202732f160ee0db313909147e","f0d5d4f9f3ef39e74d0c1e870a96878c29cce02ec9c088f81cfb5f6c669d5c53","579d8934ca56226fc22f61a04f3799fe7699e27abf221ff4b18b4e4366ea21c1","5f028c253487bf3e4328d95a4f064fafa702e10f881598d03d780ba0213acf79","38f254c15e3648878034d90d83400684a65ebd71ccbc13f3edd296bd23429af8","dc1b3f8289e7aede81e551087d4654721a2259b8d55e3147dad7ed8c6cc25f16","2f5b995bebed289dacd299ed5c0d0f822d4e3c03d3bb073e9e1699defe5a6e33","2ff1f7f678d3ef20e46395e3e0bdb81026e0294b2163bd998d7f612905838393","b9a5652cf69f8a2cf6a864b8133e479f821c200848434a7d21a2a5b5235390f0","d6302d9259c324553709c5c1d97f0ea1858303833f752acd90386f28388b1ebb","4fc35af7070a3582c6405492a637ad77c30890e1d19c04b461a3bdc50258df1f","914ef6f739bd41530e41057618e80b0e08808ba78cdd769f11515bb20e10b1b3","f0c9f05f81092a04253915106712474a19d91611bbbc8087119ec734570aca0d"]

Anchored

2026-11-03

Public log entry

search.sigstore.dev, log index 3668087860 · entry 108e9186e8c5677a9a52…

Expected log hash

8136c8219f7f6eb1e1368a1be1e1dded601bc632f0bfe79c4ca1bc6cf8be67a1 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":"v1793705308993","kind":"published-quote","locale":"en","page":"brand:pixum","quote":"The photo book has become beautiful, my daughter and son-in-law were impressed.","rating":5,"review_date":"2025-02-24","source":"Apple App Store","source_url":"https://apps.apple.com/de/app/id1319898516?see-all=reviews","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 (1047936f87a1…), 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.