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 just needs constant updates”
Google Play · 5/5 · 2026-08-01

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 2513802575

Proof data

Record hash (SHA-256): fc6805e790c30a5675828de2538b75d3d12155ce6ee984cb1bb49f7f9a443e33
Signature (Ed25519, base64): k6pFKgUld4UWKQcBBZkm/bu4Iy4lXiA2aMrg4F0sZqtUx4f9dOXpXOnfnkDSndNWpeouVij7JFz/WQoVHC2qDA==
Merkle root: 80de158564b7616572ca0c0059561f6ec90cd5bce49a388e61df989f3f6f2a86
Merkle path: ["fc64e1d958fbf59075b0ef5b2a04db98a3b790bef2012545f0366d77351e2c98","292fea0e1179679b2f3b0de2ba4b23c93d52350eb0cab70a6e3385e3dcf43e81","1cfdbcbd922503d57240e4759e794d638ec6d1e5836d543f32cb6ebff4457038","239a2fa67c9345916ed6e31d53277b5b836d7fd489a0b70ad28a0267a5c8b7a1","efd0292b276e325a42e78d3c88fb371df651e6466cce78d36573ef3d3f175821","cae5289559a21addb29cfcc3e17b18a50efadb5fdc2027c043b00154dd52209e","f79eaa73e615c58299022cf81b72e395a031917a3364df33253595aa2753654a","f032c35aff24c378fca07a2dfc6c799590a5694166af36007a6f6a1fda9f1b53","dd57e8f981e969dac23b0931133ed8571e606304fbb74b2073230ef2a42c4763","ea8ea0636209e894d42a2721c761b17b236d4732de5d8a61fbc40fe6febdd65e","7dce70284764eeb79c91b9d9897b62a39b191c5d0bad82b18667d2d644a028f3","3313dd0f5efca87d347f162963e654f8f97b434abd08d651e0c6d5a5221a45dd","a005037a25946b6652855fc44de7f4032ae34c31430074646af4b1ad906e77ec"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2513802575 · entry 108e9186e8c5677a9216…
Expected log hash: 5899b5d0ea18fa3c879147333708054c2e3cd77662f2b6f633aa3b5d5512bbe5 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":"v1787121142818","kind":"published-quote","locale":"de","page":"brand:luminpdf","quote":"it just needs constant updates","rating":5,"review_date":"2026-08-01","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 (80de158564b7…), 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.