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 used to be one of the best reading apps.”

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 2913636507

Proof data

Record hash (SHA-256)

437302c833a71844426ba1828b4844ecc41c4209555ad2bd56ed91090187311f

Signature (Ed25519, base64)

z0cx2jqMGw4u2Z6acmVNEclo5rLEYMiyOjtUdmlPfXytR1q3nDW1afVkPAmPnsBuLtjRIWIEWxhOuUEMDu97Ag==

Merkle root

f26292e960b34f73f9768b4afc64585e265549d794b35b8167826c2bcda92ef5

Merkle path

["4374653977ea9bf515665aceda7bceaaa28d0078bb71767888a93203aef043cb","b2d0365ef4c4d6ffc52b3bdd6e3f4046a67c1652b67c87b5ebde79bab8e7752f","8b56b733fc2a5c41d824cf5355bf8cb1a248c09aa2b36ba4b6bb40275f9b33e6","d19f2fdc836300ef5d422813a418f7b84129df0b835f5360bc7e074d21534283","aee9460804450eae77e362999aa5f7751efb168ed44a17d8895b84d6c4b71b96","83e03d0a3be1c4f98d9e4826afd5cbc9ac5b99741e4a28e4f8f197836e8b4ed8","9e04614f264da0e412e8056a9fcfb2d2e96ed7087b47d93ab5d744cc8646276c","e2d3fef4f834bfbc97eb6f82d002eb4ba97c630c7e3dd5bac154ce24e37e5550","59ce9d26220235515e52da5d2f4835bcce209de5082a5cd000c3e19597423011","02176e80647e61bc802ede207012e4368974d11543964fefe71c97e7ee664f33","9897a060bbed2271e97bb8eb861687536edd8ddd161a2cf4e8b399530e445ff6","00a58474486d38878667c018eb810e71180b9858df79c82d171ce5b4f5fcd15f","5ef2d0b70398ea508e6c490819b91bf39069023f910bbf3a50f0ba400757578e","0cf751b4d000491c43eea40a33568458d763987b542601ca0644e491c0b04ce6","e95e880a53b013b49906f2e6b9dcc652726333d77986f48029bb634dc427e2de"]

Anchored

2026-09-23

Public log entry

search.sigstore.dev, log index 2913636507 · entry 108e9186e8c5677aea51…

Expected log hash

417fac9b806377ff48d30ded01faf8424eb98406df713fe2564ee9077747e6a6 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":"v1790070376053","kind":"published-quote","locale":"en","page":"theme:everand/service/en","quote":"It used to be one of the best reading apps.","rating":1,"review_date":"2026-08-22","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.scribd.app.reader0","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 (f26292e960b3…), 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.