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.

“seit der neuen Version die Synchronisierung der Kontakte ziemlich chaotisch ist”

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 2514446349

Proof data

Record hash (SHA-256)

5f308c6e118644c0c1472f3bfb9d34030774f282f24ad4f32da2151d8fa870d5

Signature (Ed25519, base64)

uOQKRNtg2WQbVP+meYB583LdwbpO7qhq/8zrRVSpyJZ4LCBMSD/2qE27RMrE2s1RTH/kzg3q1qY6EyGnjJn+Dw==

Merkle root

3030a3ea5b39192cafd732e0b397cfa387f40a2253f2715cd6a4d9d218dba468

Merkle path

["5f2f5ec8ad2708b4e1135d6c7e06c10767580523c7a69d316c3b83054722b314","c26100aa261faec87b93a1bce4911183014750c146666ecfcb6f4c4dab18b399","630aaff15e59d3f7baeea1316bb8a50217416ed10b43cd84dae1331a41cf0361","628c05150d06e1f65d80c44ca98ee8f0d4e4096a8f6e9519a0e132a7bc0fb18d","876fbc81de39cc741a646902acce3d8162a4cf6a3ac5203b5905041d94348e5a","6d8df6ff44c88fd8f812d09a1e69c7c8c88d9ae173c2f1180b28f134f28aa55d","db4df4bfff443872024294d3950418d45d72ed23fb605dcb2a89fbf8088a0d43","1d93829ddcd0d92d27206ccd6eaaa5a846047116db66e4ba598d803f8dd3a7eb","398f1e8d5655578edb941e67a3f9ac7e95dbe1948c9de1b6abd426677a349c38","73fe595fbc02237a5a42892bab174aba14081c51477cf88cff1d6c3ebf9a62d8","490fc300bb843ba225af23ffd7f081dfd98b63f6c5ab625aeff242372f46265a","0f257034541900399484a35ad33dd1abeb8d1b7611cbc2bc7417a6638e5edf50","e19c6eff657ea7d0ede33010cd88abb8a9e01c28c7b3ec485b702f7e37c24957","fa236bbf83f61e60a6b63c899666e78098c5b5cc95b126245f16085503380c3a","559fcf7745d7b07c729ccd960c18a4660eed501cde8669d27c3235203d371b20"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514446349 · entry 108e9186e8c5677af084…

Expected log hash

901e903dca7784cbcc0b860ca8f2ae684aa8c7d566efb3654aface7bae409ccd 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":"v1787128322154","kind":"published-quote","locale":"de","page":"theme:threema/quality/de","quote":"seit der neuen Version die Synchronisierung der Kontakte ziemlich chaotisch ist","rating":2,"review_date":"2026-08-09","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.threema.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 (3030a3ea5b39…), 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.