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.

“I gave it 3 stars because it isnt fully functional and have gone back to apple calendar which does provide this feature.”

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)

0abc513853edaf37b6cf47056dd1f96a9c678aeaadcb57d1e3f32b261c56e21a

Signature (Ed25519, base64)

e9k8UG+BqmKHNkz3Invr2Ww9DbKhb90N7vxmX14VHsgWu/EWCHiFoMND2KUfkMt2np7F7KSh6d4t6h0Hs/27Dw==

Merkle root

3030a3ea5b39192cafd732e0b397cfa387f40a2253f2715cd6a4d9d218dba468

Merkle path

["0ab92b5c8f892a4850f76cfd107ae53c3831246811be6bcf339081115644328d","9650860f556c77cf1f7189c7543cc2e908e3e2040bef7bd32c008693110a6ce1","6330f54166d4b3af2cf3f1e1d9412192998689adbb5f8d22a2d3d1239ac85c75","3e6debd232b613bd35c6f4d226109b8c595eeb80aaa5840b563ac69370232ed8","1168877e1c6193772f3220d0ea6ab8ec732cedd5634a95f2690ad6b25451df34","48c845e12ee1e6bf18773f00dde66a94508eb2dd26ed3707c2377ee2dda73f5f","e84bc28779961c1939c2ae0d82b4791e1b51f74d2143f609a5b56b71d73ba77a","dae9b800a273b2853a5d935d37bc4104dc248490779b591bbd1eaa4503490a2e","04ea20af34659702410ef888f42cd74046c0c4057da88b0b5cab1efb5ac84f45","aa47b5825444a5e897a84f9d33e26b1f390666e54bd5e416774a244545ec9745","4ee2c9048662397df02c955e144cf588f219ae72b5e9704bcd3e8911b368ee94","d01331f58a5f612d13ba4cb0aa47c1d106456b6bb5e2c1b33aa11db914fcef4f","b64580ae2e791e45fd127b60024d48487709b542c33fc98dae2df9989ebde8e1","9ee4f1ac41a4f361e945cf5ef1d6706808f116e9d2757e90134564b7d4d09bcd","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":"en","page":"product:proton/proton-calendar/en","quote":"I gave it 3 stars because it isnt fully functional and have gone back to apple calendar which does provide this feature.","rating":3,"review_date":"2026-07-29","source":"Apple App Store","source_url":"https://apps.apple.com/us/app/id1514709943?see-all=reviews","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.