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.

“we can't use it another time”
Google Play · 5/5 · 2026-08-12

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): 108fff25aea71291a0af9245b298937784c947386f78172bd67059f3cfb9cb69
Signature (Ed25519, base64): 6ZuNOTDePnn6GasJ5qkLBGz18cmwcz55sY9GJEmUM3mfbcaOiFdEH7gXnUJfo8j+RSTUDI6A3qbOaaKt9S/EBA==
Merkle root: a893faa173c6b378c8d050262e841ab57fdd89b71985eabc0906c40abd5b6a6c
Merkle path: ["108d913e3f424733a81fca2f13cefde92410388ccc930e7587bf44e833244728","89ea836136c5c331605d406c11706e96b25bab3f8493e8547749ee254d54f5a5","47724d96cb6eb1acfed9072e76995da4d8acfd817f039fe27104bf942adda82d","e7c084633a9c7cb78468b15c2678bd4e1763285087df9941e959b0f2775974f9","29d7c6c94b1d6e0d1d2cd8771a9a727fc35632d0fc6c4a4d48d4fe561d8e4125","3f2879c31d9490dab0ba364eb8fd424705650520d5b7c3ad67171935f6eacb12","dd815bb0b658ea90a699b38b5df93d2f91cb26db22c4f9aaf589509387039311","63e7c553bbc4b89cd19bc683229dc6b51725d61b2818804cfef089e9cb453d9e","14dd7bbf992ca35214760f1d66b6b25f0c5f4e2ca53af59f33244d320e02ca8a","61263da2a2a65c61bf4f8d1e44ea4a32805089b539d75be897f14cde2d152845","d7989a88ac1bbc0beb5f49533be1133e2436d83724dd146628bfc14c39460756","eeb0191e819461d67046e8c9e0ea5e35d219e9b877b9e670c3710c5d41b21c5a","ac84b40c079795f897b874e92b06e183fd354538d22a2dfa07d743913040a0df","71601cbc06cc18d15a7af93021ee7957212de37616a4dedb4252c015daf6350d","5153df72155ae00831ba1e4416296382c39280ea82c989972042c066f445006a"]
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:canva/durability/en","quote":"we can't use it another time","rating":5,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.canva.editor","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.