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's helped me out SO much!”
Google Play · 5/5 · 2026-05-28

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 2991846025

Proof data

Record hash (SHA-256): 31a0050fa6dafbf165aa88d32722b68cf35fcea8e2b0d9c9976fe2b270d080cc
Signature (Ed25519, base64): eCT5dgWSP2KQhLGXxxVbbNl/CBjdg9hufBiMN6sxhlmlll4odC3g8OTRE8X6WeOOak74qgfEVzbsD05RQEJ9DA==
Merkle root: d312d00ed6ab2beb6e18f20d8087ad3474eb8b04b26d5ad949e9237bf3ca4c52
Merkle path: ["31a12b7495d9e31b2f333155d554fac7ad7dcf5fe707fdd11492c638b691f3dc","f6702b50dafd1e0f497acef101fc93bb7f764c5c834182bee0ccf3d7d93d6c67","1b096df0abacee6bd895f30933d78c084e4df2dc278915eecacc3da04ca7b287","4d50d48e5c0bef7db1f0cde4489b3178e14b302b24784e706f3c484e15a7877d","0a695917fb100ce3e4101f0d7bc045a58c5fb178fe851f1613406cf350919893","dd298ce373c924d820b0b976bef16d553cac922473d3535c3ea6e476d5ae42de","829b4c9f1fe045b938d7a51ac0aa07543b7e41b271b8a0e487628cf23b195bfe","6a8f398a0b890b3ccb46bd55749d0c327ba25d14f4a9686db0ab34687f6a1a18","0d7f523a520c6a48f85247674f6a0ee5038ae7ce96a1eadb76a7144e739dde62","944766839f61eaa1d895d0f8587afdee2b7aa057b60217ea2f6bfef668224a8c","ec61bf299d26f46a5e85c4cd6c31126e12a1e03e62d1bf212236077f0eef66a6","a7ca37fa96a2f7f86fc75e6a69e63a272421401e812ec6c961aef9ff5319b34f","4568be9f5fd943a51642cf1216eea7e9c24c72db1776101b5a3113d15eb8ad63","c979fe4edf99bdc6f66f54b8524194d66725def21e08cecedfbfba469c82e6f2","2fe1a36eecbe6e65e0243c1a81f5f430e558c99de7c492361bda367e122fe03b"]
Anchored: 2026-09-29
Public log entry: search.sigstore.dev, log index 2991846025 · entry 108e9186e8c5677a5f08…
Expected log hash: 321e41cd200068478c5cf6f353f00dbd75153d3d8a640e241b1a6e8e4f8ac2ea 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":"v1790574513694","kind":"published-quote","locale":"de","page":"brand:luminpdf","quote":"It's helped me out SO much!","rating":5,"review_date":"2026-05-28","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.luminpdfapp","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 (d312d00ed6ab…), 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.