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.

“funktioniert ziemlich genau!”

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 2681429093

Proof data

Record hash (SHA-256)

0e0b09111f979c81fca23b225a3b7b57d7c5e8b7fa2524365a9f79f074984d2c

Signature (Ed25519, base64)

ErwjsgQkXPwH7qrOY/ejc6HVuu/9J/UI4x3zIAIcLXY5DO4J8ixJmnO1lNhWHtyHkVx8mKiHdbEgROeGJuxJBA==

Merkle root

49d75a7972dad7fc75a734f764cdbbaa106268e1ea0f657aa8c6fd89424d4b2f

Merkle path

["0e0e0c3428683ab776e58003e004d9b99254faee41011ab0ca3f1d8b202357b5","57e0e2881d0df4032898cadd7ae8d9c4b6d078223a8c90f8acc5809cb12f689f","1e855c7f20f55a763de2d37fc127556f955f6a48258522a9e14cc73d83e03bfd","1e48092439943232a4b8a9eb6d7782bfa519c738d4c179b52ac3d8b9b3f1e64f","be54367fee8fc7d7ac1ea294d4e717aed7540ce998737fbe4e23f7e81d24abbe","2e5cc26d25c0213666ad355636d7b66d3030787407ffd6538d573d956efee744","6902117523c388e8f10ff34d9627188537f9f80504226c019acaa17eb00275e8","8846385255db42c6e94aaa661aef7b68e888ffdbaf1e5fd411b8b18ba5fb8bb9","6959a7135d2a983f80e88e4cb6d836c0154b55e044a61ac4c8c40dcba21d0b1f","f40006d9b683b4f1aed07f5b150c247dd4561bf4c8a36645ef7ac705820924da","971a4137578717d4cf8b796fe2df4bcf346932fbf526bf7734db31a4e757bff2","9ad764adb090606813af8d981e25ae04fb555663f4dd61ecaf358a138629116f","f930e87d5846215d9d33cbd2f684fd0788c4b25eadd845d1575c3bc708e059cc","79d6c858c8d60d7d4fdeb98d50012f464859bd3437e8887f9a62b641664e5493","75fe8695ca709a884269711b05fbdac24cc3f8930abb9087723ce2c8cfa8fe2d"]

Anchored

2026-09-01

Public log entry

search.sigstore.dev, log index 2681429093 · entry 108e9186e8c5677a81cf…

Expected log hash

89c17d1b707f92667072f2c7dc2ae2ebf8b7354f0952f06862b4ec01440c148c 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":"v1788303366831","kind":"published-quote","locale":"de","page":"brand:meteomatics","quote":"funktioniert ziemlich genau!","rating":5,"review_date":"2026-08-28","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.meteomatics.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 (49d75a7972da…), 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.