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.

“device verification failed”

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 2515144749

Proof data

Record hash (SHA-256)

2a7411fc199846fbdcb00581e87771d9b09a8398b0c2a0e0d749550684a51881

Signature (Ed25519, base64)

zIMv4DdaOEcn6xqqIiKarqoQ7iOUQLATZcfLiEFBaMEscICRyX5DoxhU5+tmFCDgDzsOPsyyIryIWuyseomzBg==

Merkle root

8a6ad893af0f0bb6c448016a777af61f3f4935afd82df0db132e64f813535715

Merkle path

["2a74a350616358c4c806dc394cf29853c72412c869161af7569cd70356a3495b","a5388763985f236d8246b2ffda78f0528d32d2f66500211d8befacf5b58a46b5","84af515f13ffb4cb306bb85ae8f9a42ec83fc1d9a4a06dd2a0ca9f2d0299ceb4","113dbf7dc666fb0b4a5751376e1cf31359d91694021257df21e5e14a33991e33","d05957f8a7100f861c62c36d5fca01a75b5506bc6d141d8eeb038abdbf100ad8","b746f9a5ea8adf1ef5f9000ffb51aef0fd95fe09e1acaf378462125f22f38e75","6ebd3fd2206301b9a5d01e8eef89309b5e4eb6fc0d61ee197630c2f20ebcdb1f","d84f568c2071a8935d9477bf84daaa02a3b419129a94d111711151a84460ffe2","05ea672d5b5b70e9d7e735d67cd7731f93e162d62c5308a0e85b2bdbff96ddfe","11bdd7f17cbce24bd4596805114401efa8865f4614d8594ddb5c8dafc14a6f81","565a73219342425f2b85a6bd236d0c00459fb6a6e5c14d22ba3f5dabed8466a6","bc537f1105f00bdd399b50b49a8b3111bf9e8fb0588b87aa5ba052e5cbdcd501","5583124fe582e6d7b0315186ecf512c5208dfdd6f55f448bd7355fb580296e0a","6276ae8d472cde22fe3044fd8f103b6cd700eb8d1fe29c2f968f62a699dc326d","8834edd87c11ce9424175f1744f71345038aee1c5b6f350a6f7bc2a49b63e8e9"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2515144749 · entry 108e9186e8c5677a63b7…

Expected log hash

b6b79ad662332330e69c4ef135f6fb13ddc70048f846024d496aaa533f7f7fc0 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":"v1787137589246","kind":"published-quote","locale":"en","page":"brand:worldline","quote":"device verification failed","rating":1,"review_date":"2025-10-29","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=eu.softpos.softposwrapper.wl","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 (8a6ad893af0f…), 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.