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.

“Been using them for years,”
Google Play · 5/5 · 2026-08-11

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 2514188040

Proof data

Record hash (SHA-256): 76ab911408636fe24034e6dd6e33ecceb3db9a8799781b4d00aaaa63ec83e4f0
Signature (Ed25519, base64): /X5vWeya8ocMGoGjaAXYK3w/kOXKZti6VSN/QSRev0S/P38lZlT3wnLij0IA4ddhwxhUwjDML0NGuwIogv9nDA==
Merkle root: 6189a42bfe294c4034f316d047a716a5efecb511b8dbe64c4f7f543872c9bcee
Merkle path: ["76b25317979c241b1d2c0dd46c1ee8d82d73a75d11e3dbfb45dbdb59c309694f","26f1af83bcc350334af4504efff669d25fd1a4d1d171ea416f25482b3ead545e","80d45860f4701816834a97cdfcba2ff759f65a01758a30e508ecfae86664294b","bac957180e22c78adeb73ffb8698f01aa37d6177fa10364834eb484c507cb93f","c8b614a6c52d5ffc9e29c60e64ce30388fe2950f46c73dfdf3e4f55db7865bca","0faec74f87a9c04d38f9699f1fba7b7970b45135d1dd482cd2cd92e3c474c965","26f158025d54dc6b595d2c76b08f4f6b3f82c86fabeb807121f0b388de4a384b","f0f05259fe8ba097f5ed3f0bbd191052ad7877c641e495b36cf5c4eba3fffab1","9ed8ec3e9b8539f9f56a4d2e74d6885bbdcb812c506b1bb2446c5591a618872c","ac60d38af01e7175de7408d639b019841024c28904f072df83896b8a086fa1f5","b450db856b67d1619630b5d16079ecc193e96e74f74cbff92a013560346ff48a","d5ea53d8c1df7cbced4bca431870b988d7356580dfb079baab0edc6afd849080","c8bdb6f44b6fa1ffbc76cbd7bb8bbcec4d6cde88e65e58d7ec446a36de9d7be9","67223d7a85c1115e9dde948af20504ca3bc62c9ea97637792b53682f25f6d8d4","e36acd56aebd26af88e4e41e8d5bc2a1389f049dd914bc2c3da8d68ac2fede4b"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2514188040 · entry 108e9186e8c5677ac9bd…
Expected log hash: b0fc1d11450dfeabf778635bd8a8264987fbb7e682331541ce1f5d7507d4e862 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":"v1787125125654","kind":"published-quote","locale":"en","page":"brand:sumup","quote":"Been using them for years,","rating":5,"review_date":"2026-08-11","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.kaching.merchant","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 (6189a42bfe29…), 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.