Debut or début (the first public appearance of a person or thing) may refer to: Debut (society), the formal introduction of young upper-class women to society Debut novel, an author's first publis
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 0x2c69100a2977dd32cc6429b47ba03e93a59ac6ea22362194bd60d9335f8fe8b7. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/da83ba4f-4be1-4548-91c0-38c7754d23d3.json and https://artists.proofprofile.net/proofs/artist/da83ba4f-4be1-4548-91c0-38c7754d23d3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).