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.

“gute Sache, und gute Sachen kosten halt Geld”

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 3121837738

Proof data

Record hash (SHA-256)

8a1e2bd3ca2a006546abf34d9a8040761a4a3d26c9aa0eaca986add77d8c574d

Signature (Ed25519, base64)

hhwF8FA3xZb4Fxv+oF5QvzS2TGrzmKFbYKITykTRfifC5oOnP8C0M1xNG5NeGlmGx6/Xjhn1ke/U4pLd35ciDA==

Merkle root

9d32c0cbfb02966e7a561566f948b48040888a6535c058e814428126106ff945

Merkle path

["8a20f9e4e43b821e37684b33592d502ee15e4022f5aa5b4534e80a4f7f5c1d1e","4ab6dfde7e1d431c6fbebdad866be755f5643c7c4558832a3c11fa8a11ea4e1f","efe41c9db98cabc3aeb49edb15a94be0f52b5f6bacd605158d04dc7ea4512dc7","5c262c18113b7aaff8ec07ffce3ba20c93ae2fa2599a9216ab8b147591728d18","9b40701da1c93a3451ea03deff73ecce45d6bee3d99f47127841e6bcbb30ebec","c194d7d75b5b03dad69904eed50189004769ca5dbf7589c01ef5568985e52873","baf5a6ec4ff936a5d21eda7ba4c749e52e582d2e5ef350c223ad0322af79180a","a69e888d988427b1ae6ca1606ad3a1b734074883d639474acfe9e39295053e2c","d32f1ca3a7a9368e280d1411c052c38d1e1ac58ef032f11047cf7d3d87c5e1b5","383aedea2ee20b141b16244ec4dd2a14700069a83d6dd5d3583d8fcaabfda0f5","cd7e64dd744c6b2b3c0bc1348c71c214529f5922bc33f0cfed04ae6d517e5f30","6d541edb33c9f5f1ee15fbb1fec161013911242830bc1e7512ad7e4c9bac785f","78676505a7a4e31eeadca3cd52e7c8dd54cff3cf24b51dd75865ba23f402c848","07b2decfe383429cb71278f9069f54d1b4f607f991c518b70357c1681514c3ad","a892fc29bb3c992428927e47e35596c876cca06d89acb4ca102f2a534ba3ab13"]

Anchored

2026-10-07

Public log entry

search.sigstore.dev, log index 3121837738 · entry 108e9186e8c5677a0c6c…

Expected log hash

a0090149b27e60cea52dd7dc5f0abf6dd7c00feef65be2874742fff2aa9e8bad 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":"v1791340487550","kind":"published-quote","locale":"de","page":"theme:zasta/price/de","quote":"gute Sache, und gute Sachen kosten halt Geld","rating":4,"review_date":"2026-09-21","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","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 (9d32c0cbfb02…), 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.