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 use the storage for useful access across several devices”
Google Play · 5/5 · 2026-08-12

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 3248278454

Proof data

Record hash (SHA-256): 16edc22188fc11f1effcada443d798a252329d070cc3ec6be2edc99ea66aef9b
Signature (Ed25519, base64): /1zEOI8HNulaDzsARXbBUGt036dbNNlGP2+hxHojgwtaxjgaLKyIri6r8Ebtwnc/JM+dqijHiB1Q+g0WkXZHCg==
Merkle root: 81db1abd6b6e636da393518bb64e907fa9c48581b44ac2be5a9e74d02608e451
Merkle path: ["16ed8745558fa26dd3e469d1ed2d6c249ed2de8a1253c3268df6e4b6b1c6c217","dd83dcec2ef96d9e9065940bd4e48064a33939651bdb226879c78a53e26cbd9a","991d3b674f192155e4dfeca4cb858ccba6ab8b85ee1acb217c08ee501a1aed00","83309abdae8189288470fb17628e8e102fdb6638233a0b202f20b2327a05f9a5","6d359fb8185df6daf8437ca771deda41a7cb43e2c09ea3116525dce9c9af1698","382efd95af8eb14e13d48b973998d9cf14c0da4629fb816f567e1af5ebed217b","f998d54b41ca253d1de1be60300fe3b533293906229d81899435faea1a0293bf","226b57331517fa187e90380b0bf2f7695567c08224d4108fe37aa809fd5c25ad","16dc6cc1cffb97b8761419de342feed8300d01975ca4bac20a0e16c428ba681c","7555ca7755ce0977aa97344e9edea28c77141a78774910cf9dd1ec7f5be52ddf","f0d849fe2b2b2e8ac46eb31ce8ef0940645609e0ab080116168fd866668ba7ee","0f8ab31a8b7f9aa6ba4ff019c72fbe9792e5837d40b3bad40ea1cfb0cc79e40a","4fd1b36929337d346b3723be273df6d7588bc7b080f058260d538b3f309857bd","6fa310e475466f0115dd6b7ba199f23e915f2a513e2610274356ac5bd367e940"]
Anchored: 2026-10-14
Public log entry: search.sigstore.dev, log index 3248278454 · entry 108e9186e8c5677af67c…
Expected log hash: 4dfbbd25ce402c4821f7e2d50b18e091e9a30465f45669967c545fb71910f358 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":"v1791948368672","kind":"published-quote","locale":"en","page":"brand:acrobat","quote":"I use the storage for useful access across several devices","rating":5,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","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 (81db1abd6b6e…), 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.