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.

“After canceling the subscription, you lose all your old tax returns”
Google Play · 2/5 · 2026-08-24

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 2882354328

Proof data

Record hash (SHA-256): c63cd64feeb0617fc6999e797126c1d73d8704a682a74ad3e93cf14aafcf92f6
Signature (Ed25519, base64): 7WP0qWNkPOPj14CcQ4Me0hez0FHXM2VjJ5sLdyzkUsAx3iDtTu2+6GV7/HlHKsQE3yL8iHdxJwWYWh/HvGkuBA==
Merkle root: a893faa173c6b378c8d050262e841ab57fdd89b71985eabc0906c40abd5b6a6c
Merkle path: ["c638937569a3bdc5f4b1d0ea33e7f02373e80b2624b28a0ea5831f08db9235c3","69e5605454a7d485640762351389fa0587ec21c36e2bbc698ffd4a80a22d5c02","ec31c978ecf896209634b9f08790ad9de8082e1cfb78cdcfabe3dfa3170a79c1","a1c28e907d3201e7d3364ecf8af5d5bd8e469487d640a637d020e0d1c3530d9f","f7db346fde5f3e512f44e0e370f968a6f707aec9553331d4a4ee2e45a63269af","abd6374be301bec64b78f182a1e826405f075683ebd06abe1d58b138c25609f3","ee251125088ee83a19b65e2ab3aa349c5f8730c7e913637df5f17fc521c6d367","bd7d27fd8caa36a55cabf0521b02a5fbd4af27683927d3ad0ac3dfe2dc0b41bf","05fef326d6481031ab9a306e04cd0480c1144dcb24276c61f42dcabf2cab2d55","ba73254c9e33e532c2fcc7ee5ec82551a179babb49da13ffaa1d40049996be53","c0ada24110e4d8c5b84abf418ee97bea83bc6a89ac44c0e9edeebf9f597a588c","045fdae5595379a07de7a8b75eccf2c9bc9ef267658155de694395cba89e6811","d11802523d6d1144d6f961b0db9dbcffb460682e8b89bd4df3a28683480b3702","96604383e0e3cd500d4560285508cbcc8eef5ad88e576fedea27dc38c3fc8ebd","142316fcc45d8fbb9a33df6e9be8f563650927c4e612ee96d4bcac9064ee60c4"]
Anchored: 2026-09-18
Public log entry: search.sigstore.dev, log index 2882354328 · entry 108e9186e8c5677a08a7…
Expected log hash: 5510a497abfe2e680a39c301b0d905c2a575bae0a1f389fbdd7b86babf05240f 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":"v1789619628558","kind":"published-quote","locale":"en","page":"theme:taxfix/returns/en","quote":"After canceling the subscription, you lose all your old tax returns","rating":2,"review_date":"2026-08-24","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 (a893faa173c6…), 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.