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'll definitely recommended it to every learner, reader, editors”
Google Play · 5/5 · 2026-08-01

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 3140838741

Proof data

Record hash (SHA-256): 317841e2ee088cfb652f275fef45abd806602c7872149221f28b32e768ce9494
Signature (Ed25519, base64): eG4nOm1M6jr0HyJzWxfOvpdklk3SrxB8rOAN4pAJy8nugonJA3GpJt165/lBdQYuBUy/dtYytVkIKDJcfTq8AA==
Merkle root: 68ee5f8618d9ce1aa33f2cb5b6f3145b5f909a3c35a03ccc3d10e979b2f81082
Merkle path: ["3177feb616c2e4e9758c4f7c01ab57a6ecd6542474f16c83a59a708ee3333078","3d155be7996b4e6feefc7c58968b667ba9ac2dbed27caa390c21f72a4e60d777","7af5ed3d1d55b099d74191afe62f392b4b212946ef41f327a618acfdcbf96160","8428ea7ec63d80329da90b2c4d7eaba5eb5cec8e1ae4051cc1503e1f62d58002","9b8e9ff985af09358ab5fa4add8a6c8773a249c3ef2e8f2e2e77e0b5a4e83024","3aaac16ddec6189dbae70cd549ca928da27635600e20a911ff5145f000db6c86","e6312ed96ab32c2c65fa6d9bf0ac8490d6bd4f801afe250651a4fa14f7159f4a","e0b5d4b7a5057a6d9ce50d3aa3ecd4f621997852ef6ce1f06fbd386b6569bbeb","e267c38ec96ae6185427e5d0800ed44edae413a3fae927339da6fef08f3d4571","bc8a821881b87359e458fc3a24544d29c172ac1edd67bbd4a47cb5b80c9bd281","f5f19d5d2d00726c169827891513a445432473d44bb70e4cf72a3765daf78772","c0b0e5d80d4c20548f54f9b2ba03e64a0ebf2086ab62be23101b4e2701c5cf78","e6960377f92ebdc1b41fb37d3ed0decff1e5fba5b62ad653e7be0f8408d1c6c3","e66299710f80b56c392136748910ac59d79a991f3e479ea8a96c5c23e200aa78","418554fa0ebde54d6cdcc03145c7126505ed96d3734e8e7ae56dc0dfd8ca0a2e"]
Anchored: 2026-10-08
Public log entry: search.sigstore.dev, log index 3140838741 · entry 108e9186e8c5677a4791…
Expected log hash: ca4949400cf2d29b49789563ea2e672fc73762380548d6fd65398e40c0d98728 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":"v1791433229105","kind":"published-quote","locale":"en","page":"brand:xodo","quote":"I'll definitely recommended it to every learner, reader, editors","rating":5,"review_date":"2026-08-01","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.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 (68ee5f8618d9…), 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.