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.

“My tax return was ultimately not submitted.”
Google Play · 1/5 · 2026-09-03

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 3140475820

Proof data

Record hash (SHA-256): 91d5c6a7db044659517336e1df8bcd435995190fcbd8046bf9a76041e7ccad23
Signature (Ed25519, base64): GT+n8XVkB7Jra17IlTVbHtleg/ZLt5hLTmjtzcuwZaijtXTEEYjqCTaS9exenE1YpRAJEwfpxPX6MiUxiO8lDQ==
Merkle root: 52d6be1abed15ebd0724a0e1a493d5805e1ea49ddcaf8e9e5584928cd3e4d759
Merkle path: ["91ce36e4b528eea701129046e021fd1ab449c4fe4523a50aa402576e7dfaf133","ece22b0db3f0c2eea2650e79a013ec5a19cb454092ca60ae72b8cc56be934fa8","6c0369a1d4815bf43434f0890c813bb855f28b95d1f9046e03dfcb0d9efe2e4e","33b75f74598431676e588129896cb37f0b26b3eb4829ec4d87e73a36d4c330f2","f890d72ad7ea5f4730d80d0d282561146c857394e36aa333b5bd22ba8823b023","e6e28bed91528354e5014de3ffa6a5bd39bb0061762a6c31c798849123f1d941","34001fe4544c0adca90a94d904f1b2277ad26ea6ea0e5cc5f247c8edf45983b3","7e2378f91efad757586a5e54ac27909208610d228d9b64e432afd3a368ed9671","ad4a2da717ce858300312680bf937f2274a94d18fa126f2ae77b8307301f9b74","79e3a081e94d43f8bcf6d0046a84d651ec970fff261237dde86b6735a101b046","a2179e444f6e6849c74282b37cb4c2be4a69f88504a4c0fca932f9b997fecd76","74700b83797e7cca97ab7cbbbea7021bafaa4e0a93d0b612dfda75605ecb0b98","b385fe89375278f2b45342434275d4a9ef2cb82ec9dfe399e3688817019e556e","64b3ccbf7465086dd7db73066d917eee6e4789a39addca1cf1c9d0e38a1ff084","b72fcc24171828b3fdfff6be65bb433d37b8e51a187739d27a216a784d84cf36"]
Anchored: 2026-10-08
Public log entry: search.sigstore.dev, log index 3140475820 · entry 108e9186e8c5677a78c2…
Expected log hash: bb68bef30792bf00f645df162a48943f770bc3f026216a44dedb4651c8ac0917 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":"v1791431489246","kind":"published-quote","locale":"en","page":"theme:taxfix/service/en","quote":"My tax return was ultimately not submitted.","rating":1,"review_date":"2026-09-03","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.taxfix","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 (52d6be1abed1…), 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.