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.

“o app não fez uma mediação cuidadosa”

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 2890214870

Proof data

Record hash (SHA-256)

bf43f99d7c800ce71c79319a370f7b8ca38c06ef7f4e9bd82845b32d9c5860e8

Signature (Ed25519, base64)

zpFBBLVNmqzD6+0vcyKOu7ymRLEQU65/vEYpWKwX7LpNerQroNoB1RmVrRrAh0lSp9FL8xcELKp2fh7pmTqAAg==

Merkle root

04b39eaa56e1cf8f75dc8eac18bf6942167c8418ea731a7471223f0be60e3e6c

Merkle path

["bf456f6eb5da75ca0703e621ed00124cf557a8034a2bc5e1eb0d4808afd5ad7a","b07737b2c5efd9d4f55127f14bfbbf6bd20ace8996eafc28c9d947918d5972e6","aad65c312a4bd191034191212051301f93263cb72fe588ac8717f04925c8d60e","4aa366925240f8f400869aed5d54f23dbcb4b7ff8317c8091e330bd0d9fcb90c","6d89fc12a23e391751cc1f6974c755e6c4e28565639c90adaf5ead3b64d0740d","b1941778f2edb5b6a6fd82c0f4a1724ff78f68a0d9b6a98f444fb3445207a12e","f18e6a120890fa6f53b9661d7a7a84804935f003d3078008c5ed6b2abef2af07","fa509b16a9a76631f81393fddad98c00a0301ee70e8c8f708921505c8be0616c","c438cb4d9d626d5c72b1e2646153da336cf2f7b95f32e97994e0c11eeabb5fff","40cb2a47909c7de796ef8703b16407a24ed2556c3e7db47be670eb79e4514741","85fd08813216532cdb7e65deef6a49e87e80d6af852f71904fb08734524db376","1ef1a9718be3c90e98bc2f2ad1b13dcfe1b53f48fcfce25ef31cfaa0adba4581","77c7b6988870e1e90529e81d4533964f2663907157dc1c87878656cd074ac437","8f074eddb198349108c1e544aa98c8c80e756f627b29b4943cfd74cb3331adf1","3ba88b0016422cde319348a72d81ed01eacc4bd155bae80b5c4b6ab6d98a745f"]

Anchored

2026-09-19

Public log entry

search.sigstore.dev, log index 2890214870 · entry 108e9186e8c5677af53b…

Expected log hash

1f3acef0f063246e051bf412e40f4279cb96ed334ff7b0647a13320c1b31c4fa 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":"v1789722569406","kind":"published-quote","locale":"pt","page":"subtheme:quero-delivery/service/falta-de-media-o/pt","quote":"o app não fez uma mediação cuidadosa","rating":1,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.querodelivery","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (04b39eaa56e1…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.