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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3ed370d26a22a129e28b32c650a9696a9a47fea6409400fed818cb3e08756f. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9fcb7343-c77c-4097-88da-2c8e851c701f.json and https://artists.proofprofile.net/proofs/artist/9fcb7343-c77c-4097-88da-2c8e851c701f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Folge 6: Die allerkleinste Polizistin (ungekürzt)
Folge 5: Der allerletzte Fall (ungekürzt)