Binz () is the largest seaside resort city on the German island of Rügen. It is situated between the bay of Prorer Wiek and the Schmachter See (a lake) in the southeast of the island. To the north of
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 0xbf3d4d77e77086cb09c6590e94874b71b5a9c763e97b1c1e025175ee8a7dca8b. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0b1ce6b8-600a-4bc9-b5e7-5e5a8aa98152.json and https://artists.proofprofile.net/proofs/artist/0b1ce6b8-600a-4bc9-b5e7-5e5a8aa98152.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).