Talizman were Japanese pop and rock band perhaps best known for performing the opening and closing songs of Ultraman 80 and three image albums for the manga Locke the Superman. They also
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 0x9090319e0d8f28c733c190acd3525998fb3a5dfb8686dbe21bdc72e1134248fe. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cfcbcad3-4a76-46a9-a973-ae775848e304.json and https://artists.proofprofile.net/proofs/artist/cfcbcad3-4a76-46a9-a973-ae775848e304.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.