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.

“It works almost anywhere that asks for Goo.gle Authenticator”
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 2621946731

Proof data

Record hash (SHA-256): 0afcf963c3c8d620f92d913b2322fa7ce03ee69c7c8b63b40f3c6049c37a6034
Signature (Ed25519, base64): Ls2Fb66aupVQJeQdV1BHHVQBmuWT/H6LdaTC+JDNDB2cGPZoOujDSWPAvgFSVsDjLRmbhWVQTUVlErDLOgnzDQ==
Merkle root: 3dfdf7381c8d7ad52c2e382f4e16b6f321af764e7eaa340297113fa50b9a0792
Merkle path: ["0afe458d6a0f692fba3a42702b2a4a2aed278728dcd5bc3351a7b49e67fe0bfc","0a8a3355945fb5af74fa443cb1e6b8523555140647ab7ec8e9999d50c573fb60","e5fb4a5f7252d477eda420104ea15eb61faa48980d91eeb6749cfbe9fbc867a4","c79a345553a00c7adfb3d4ee5d521efa9f776e9a25e7343fe3c79ca4c27a3331","9cb2053e627bd494b4d4d2e570c32fa6769ff5b4d3bb54b58bdf6cf659c96ac2","4dd82a985cf55090541b2aa745a0ba62ce929088088e72b689c9b8084b479f04","235f83e86f1586e8c20fcfc87683e16d103d2db9b6927ad0bb598515a5c8fbe1","23d879b3356576954603e7e5a859ef6a39b6bef7f6c65ad1574e7f604057039a","a16531ea09ce7a43f06a4a7953e3ff2a85666ce432ee2ef3090bac6154fb1e7c","52ff7e4d47fd44aa1bbbea0639f6052ee70843863a737e5ed1717bc5f18e6ff5","a969e840d4de72a9205543e10906b676b72b32979189e08f13c86083e720650c","81f5340bb1c2a0054bdc2b1c036e86ac1d05247316c250aa07dd756a5b01354f","83e63a6d799b1ceb15f089aa785a41ce6f782296862900005501fb5bd92d886e","81acff1af3c2bfcaf656a4ff2b93eca8121fe44c1d5b5a4dbce370acad78d2b5","377cd45c8c0bf5fb2c54ade6d9c4a053bed5d007e1a30f5279132a3d565864ef"]
Anchored: 2026-08-28
Public log entry: search.sigstore.dev, log index 2621946731 · entry 108e9186e8c5677a0a42…
Expected log hash: ea07e2ac95e2432412286c8e9f169e876b2f38f9762d26c0a0ce3cc128edcf3c 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":"v1787893493942","kind":"published-quote","locale":"en","page":"product:proton/proton-authenticator/en","quote":"It works almost anywhere that asks for Goo.gle Authenticator","rating":5,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=proton.android.authenticator","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 (3dfdf7381c8d…), 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.