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.

“They have been trying to charge my credit card over and over”
Google Play · 1/5 · 2026-08-02

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 2542879916

Proof data

Record hash (SHA-256): fd556fe6bc3eaff7a9d596d1d7f517d1bddc7f3305f6eaeca1a8005a77995489
Signature (Ed25519, base64): FOdP5IOF6rtbNHueFuqTkwuUp/7G4Cw4dsgw66+V0ClcKqtzu32xxxyC0x0LzMAJF3oiQ1vMmIkpAfhAkawrAA==
Merkle root: 681242bb8cfa94d3b60cc06de1bbe3e5e124dc1675276b11df0aaabc9faee58c
Merkle path: ["fd5508c3166d015a1f13c44ac6c1b1c1446635a3cddb1812b9ede24d7694cc53","e70eaff851fb57c3ddb8b6ff8e8fa3a08945054e4027fe5bff2df6c3d5c80be3","2d47184391180412f4c3b49a9c939cb2fb45f6a774dec094647e920d0415c46e","b7aa4a584b2e9d97cbc5c0007cc1b5b25b19329d263ea76d07de0dba14927ddd","c51833e539f9b3347a57b63f879f84a78d25ae87d014e399a315e342daf2d572","2616a2b27607e1175853d89dff0d70355f7d0200eb9fde1ddd05058107ff4ea4","6c85820ca05bfdfc3cc6334d79b1e8f03675bc25b397aaf0ff806347dc3dbd2c","2d93ad10d52012346cb69882723b31d002be20716d89b9b203f22bee2da71eef","a8de74dff96493082c66076da18f778870805acc08ded2c754453264e6f51501","e054afc74577ca0aa5e7b52a63f4e70bd88a2709271dfe3ae5f3639376eb4006","339dae50e33d50aa0cd1dc447432aefad2a6e04bc149cea692cdd6f203acc133","0931601ab88b17ced10d210b73b69d45855330e2f7d04827af69758de2cb8cd3"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2542879916 · entry 108e9186e8c5677a2329…
Expected log hash: 8337812f20bf1207a3c96eed87ab975d7e92ac1421dcded24507b32e456b788f 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":"v1787282728402","kind":"published-quote","locale":"de","page":"brand:signnow","quote":"They have been trying to charge my credit card over and over","rating":1,"review_date":"2026-08-02","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.signnow.android","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 (681242bb8cfa…), 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.