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.

“I have been a CEWE customer in Switzerland for years and wanted to order some passport photos, but after an hour I realized that it can only be done through this degraded app.”

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)

305a889018b08ccf3bfbd20ea7b51ed5a430a6fc209e4fb7f889efd53251ed69

Signature (Ed25519, base64)

FlA3pGnBiVq8Jnu4EAsRFqUHwZwGF1Rq9aQCYVlS7W6W/FGx6FBulwcl+1P00NyfbipLtjKvZBpugg66TQDxDw==

Merkle root

9ddf6b9053b6e5e7a2f15ee7f3bfc8dfb72c48a1917ae5b7e553033e3ded6523

Merkle path

["305dbef8edfbb1b68f5d3d5a8ab8501c404e305317ebd9f1b6e3f2cfadc37952","dfd2a3706d67ff38c9785bf721be874c3c62be39b29f40389351b5bc99a39ee4","3780ad4c3f3f2e5ec041be917fa7deff717f16809e7920b02ace8e4666f6b13d","85f0c696c10ccd26c7b5d8a672526f0076ee000e4e33f55cae8a0b3ea55da7a8","b2da406cd239b0c8d75d103e3a363851933bb15601b8acfe0372fe59788d0c21","b3c2f5d68763f0be43cf92d8fe83b47d8fc389eb7f6bebf564bebda46503aebb","67c3b7a1d2178a94de8cd0f309567ede3686914764be5fc4335e442a5fd0f72f","238470750642313d8736b751619fc8314b3d6d23f5c034feb99af6fc5490fd9f","8734406a1ff164b52b77d66f974a472b36a6d3ddbaba2617cc61a82f5533df71","da1ff4da86ec1e63022f2a53a9f230b9f954fe032f44093aee97382fde72189e","c0fa6f6036f50e4f46a8070004f7b38d5dbf318feb1785015761fa89b6c197c9","db5f52b77dba7e273fd04b4e662f89073fb8d8400874c5cc7bbd809a4dd257bb","4e55fbf7ae63bc538398b4fed1ca658ea06c5c93c0235f9de3c90ed09829d3d0","a4308f946a16111c9d609738b93b2f2ae813ce88e33e490f89cf33e3a52e64d3","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":"fr","page":"brand:cewe","quote":"I have been a CEWE customer in Switzerland for years and wanted to order some passport photos, but after an hour I realized that it can only be done through this degraded app.","rating":1,"review_date":"2025-06-09","source":"Apple App Store","source_url":"https://apps.apple.com/ch/app/id6479752402?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 (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.