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 unlocked book no longer functions following the expiration of my subscription”
Google Play · 1/5 · 2026-06-02

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): 6bbd112892e4b2146869d1e8d2bc08be820f7db5ac8bf4fdbaf2ed79353edd96
Signature (Ed25519, base64): dl2ov2A7BtaYxsP+FjUZFJXDCv6kvtnG3BpO3SBFdudYPOI6wCM7tZcpKN2xQ3IgK5qSpjNDbnGGMKPQBA7dBQ==
Merkle root: ffbc979c8901fdf55f43c5151768b18a738fc1c271c9b2dc97349c3fa8ed35d2
Merkle path: ["6bbf44f7902e1ff4010b6595a2e3b3dc77bf573991facd308d76042744a5311e","3eeda604bd3caa4d7a75058f03323626a2606a74f838a4aa580440cda77730a4","e76423df6b6627be4c6f19d097c701b1f1cb81139f77e34cf40d2e498d89b89d","e927529303b8fad9ed1a6d512cbb1b6dbe09ce0d8bf2467211499b9d3cf4d2b5","93750042a8d54db714143dd167e4bf912e91eca200bce1007723a9d0f7b876a9","a39fd195e86ca9197380fc4f36415cf358859f18be7b2dbbdd924c55055a31dd","f0f28b50225739cc25c9ac9741eb4e9b8253fd2ca470e4db78579b8f1480bd9c","811182aef30bf6146567b641fc7263bb7d9ac206e765e1dc10974bdfaec5cf48","ca3e12a72c69345f0cb97da412d03c70784bf4e95c4f1be6667d6ff30452a9a3","87a35b01ff01a1662365604603090a7cebda72696370c4ce1916ab0ac5544473","67b927fa3d0d7706343c324b1655bb80e3a033ce491d00d4fb8fb74c8bc30920","095739504d11589a9b84054a1c1a7934558e648e1df1dbf3f8b33a2300ca6dcd","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:everand/durability/en","quote":"the unlocked book no longer functions following the expiration of my subscription","rating":1,"review_date":"2026-06-02","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.scribd.app.reader0","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
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.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.