Paula Beer (; born 23 February 1995 in Mainz)dpa: Paula Beer: Vom Schulhof auf die Kinoleinwand bei mainzer-rhein-zeitung.de, 7. Februar 2011 (aufgerufen am 8. Februar 2011). is a German actress. Li
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a5f5ab84dd5811463ad63a34173659f9c06fa50175afece6bd732cbfd4c9bd5. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fae93310-8578-444d-bea2-d28e64e8965f.json and https://artists.proofprofile.net/proofs/artist/fae93310-8578-444d-bea2-d28e64e8965f.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.