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.

“It's become too expensive now.”

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 3199173952

Proof data

Record hash (SHA-256)

4f9aec87abadb95eba4346ed4c25f8e09070e47c1d9baaa1d0433a1c94c2dcc6

Signature (Ed25519, base64)

qTwg0tc93c3Dfxlj6YKXqE6nsxS8MoqSboCwNhOH0itOejRwSMKcaRE+OL7JZajc1ZheCQS4wE/a2IHXfrz+Cg==

Merkle root

ffbc979c8901fdf55f43c5151768b18a738fc1c271c9b2dc97349c3fa8ed35d2

Merkle path

["4f9dd840b6da04a00c1723c130f37e33ac7559b3b1e19d47fd65a8b9217223b2","a37c4fc24de7458e870e06df87b3b7e1799f7f3d8a64da9ba937e908c2ee4b20","8c63173364c6323b348b79a5f7eb218645f040ed4fcafb5851ad01253e826c59","8d345dae28b50ca42d8f0b27967f2495dcec45674f1c7cdb277e3cfd5bb84807","91611b1a540f1c0de0d832a023957476b7d071c4abccb5d249245e55f1ff6c31","13d082f75482ccc8ab70179c82ff7a4cc8575cb2a565725d0996d686849fb57f","37798c3fc2684a583b853b678fff4570d4c79ead764a1e35f171fbb686b508d0","0c952ad5476178d7178b18c8d826bbf65e869e03014a71c4eb61515b52b7b4b4","625318482f6cff17ded6a85ecf7e9e7e3913f9346499de31fdcc41c01230a81b","3f107b2807f170b6f35bf804fbd86ff43800e8d5e9922a17772f0651cfaa3772","88be0192ba1b13ed14317710751f2ad2f82b2e1f6f9c1ec81a0a8d8547ab4684","45fc2238455aa65e3b4c8344b94c4c6c999df482a430c903a8e0496e105cabba","fbdeba35a2e566aa48ec8885bea50296aae01205515c3657aa205e182ee9d5ff","2f35432083547a52411b4b8128ab118601abc6a6e158a38894add0923255dc0e"]

Anchored

2026-10-11

Public log entry

search.sigstore.dev, log index 3199173952 · entry 108e9186e8c5677a85d2…

Expected log hash

3bc66074c7b0a853326bf5ba0590a111eee6455dac5c98c791c22eeea9a48920 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":"v1791689192448","kind":"published-quote","locale":"en","page":"theme:taxfix/price/en","quote":"It's become too expensive now.","rating":1,"review_date":"2026-07-31","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.taxfix","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 (ffbc979c8901…), 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.