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.

“$9 a month and you get to listen to 1 book?”

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 2681683699

Proof data

Record hash (SHA-256)

39a297d4e3b27705e1c018116102595e7f3f986c3f1bc4b45ff29c5c07d86068

Signature (Ed25519, base64)

DHhWiiKiFjkVuPkc7NF9PuWtBHFhhxJ650ovywRthybXHqhOCNl2pHr5vsNf3ei0S8NcA+MjmzoQBcvZsf9pBQ==

Merkle root

ccb89d7f2b2787a5fc0f51dbf1290cf6d3d054f065f4d486ba9ed3b4bbdf9fc0

Merkle path

["39a18bc33d22dac53a8776c77be0746a879515be361155b910be1849d7d3eed2","2dec2bec088fbad5cbcade2fa7a2a7b6a2d9ae89e814abfafb492bcf061a8fbf","35d71f0ab174faef784406628068e9db1f0201a0c868b50982bb0f035cd591d8","19fc250207b13c42d54d8b01a5d51df3f3e7b486b2fc1ebc641fd312cd20d573","6f6cba9bd8e1718618ac5d65cdb12c495497b220363b8e1ed2f93e834ba294f9","9a822024647208d03f85a1ba25491ba4f9dc364d91972ccb67c57bffbaf8f9c0","4c107a23c77665219b689f3aa6f8062995da58b2d0888a0ead8737dfa8fc2e6f","d34209303bb7b7a9d600dc0e20a1902c03c945a0634c4f41b550b4e7de7b8f8d","438bcd28e13422003dbb4093cb0a959634b69ae953ea4b780d2ab55f17d7bf26","bdea524495853e99e45fd1ae30174927ed4034dc75fccd998041d55a33fcec07","3bdc727ddf8dd05a204f48e7ac7a6a89760374481639f3ace493c510959086ee","0fd5fe8fc9d1fbf95659debb61e5166479d1feb832a4d254fbf714abf144d2f9","fca22ad74c626423b8d0040b823d5505cf86a2d50dfb8dd43760095e72ce19ba","b844e11da68827a04d7e3043eae18bf24184f5ceb32171d2c67117bc6a285203","1b1d46fc72b77beae0123d299c828e6389aec5d7e71b30d8e28560454bfea5e5"]

Anchored

2026-09-01

Public log entry

search.sigstore.dev, log index 2681683699 · entry 108e9186e8c5677a35f8…

Expected log hash

388b8efb5e320612921149bcc968bfd0483dff8f345428556bc22b9f1c360060 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":"v1788305244922","kind":"published-quote","locale":"en","page":"brand:audible","quote":"$9 a month and you get to listen to 1 book?","rating":1,"review_date":"2026-08-31","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.audible.application","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 (ccb89d7f2b27…), 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.