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.

“Where is the option in Portuguese”

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 2495023211

Proof data

Record hash (SHA-256)

1190bb54eb03fdef5ded4db4a98f0ae2e4983ba791307a3e970f318403c102c1

Signature (Ed25519, base64)

EBzY7a9rQ0bfpHR2s1QHXi/sDyq06qoiXnFWI1/CRFfoy9r+WzfE//7WB2dlDjipFOvlNov1J7vLzLLq9iR6Aw==

Merkle root

06e613695f6fd14fbb088768a64dcac7db7e51e20377c5553a89e47a3f170973

Merkle path

["118e2237b1fb25eb6c90a906765c2d807e97bd7e88894173efee8cd964c5d388","42f9e1633d0b287edf350212dfd50c3d87ad14c3c2da7dc85dcfdaff1063862b","5a4610e11758fb43baa3b2de3b4363f3dd06edbff969918e3730cfd19cfd47dc","eb07ac5e307e5a8ec61782318254c0c86c5b0b917c5512bd140ce1ca0232b99e","0ebfad4db6cec0ec211b618cb84d6b17766484fce7f3290f8dd0521f6764aacb","ecec894ac457120ac3d10d943e7806bc0973ac02aae0bed54b6d6abcd17c177c","358b93d661dd67183a6d3485fdf9ed580f8c6ff47669d2a2ed9e1418d58f4eb3","d34a7ce08b18db265a4cc22497af90be018a710efc02e27836f7c6e1746b9084","5736c92da4861b52f8d34f7dcace60f1e1880df2a7a151d0826fb8c4316dd7e0","ae7706221ce41694bea5eec2f799a06b7b53f2bb5e472b844554aa46afd16bde","6496cf4a2c2b42b076eaabb67f2d7b26b80f5b82ad9dfc8e8babdd6d22772a8c","830ae3e8423b64590d6511b916f1035356345c177498faa87513faa2caf06496","9065423d74283582e8c0dc8f4c69aaf2d383ecabad8aa34a410073f58dcb83b2","5d2cc996b9927b92824193006f44e21e44c3612641846e4c479e23372b93a6aa","57b2e297f685e8e9beb7c252d3751724373d7aeaf3237e21b30d90872aed5bed"]

Anchored

2026-08-17

Public log entry

search.sigstore.dev, log index 2495023211 · entry 108e9186e8c5677af4f0…

Expected log hash

1a10a3fcbc3c3ff2c5a6cdf309089595ef78518d7c8e1569414b6c7875f49d97 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":"v1786932055373","kind":"published-quote","locale":"en","page":"theme:smallpdf/communication/en","quote":"Where is the option in Portuguese","rating":1,"review_date":"2025-09-17","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.smallpdf.app.android","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 (06e613695f6f…), 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.