Blam or BLAM may refer to: People Baz Luhrmann (born 1968), Australian film director, screenwriter and producer, who uses the producer credit BLAM Edmund Blampied (1886–1966), Jersey artist Musi
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 0xecf936d99e1dc2d71af2942f84881148c94c9bd0f95bfad6436235dd0b37261a. Chain 2 (Bitcoin): anchored in block 953947 (2026-06-16T13:14:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/223fd99e-8e46-4d4d-9d0d-4ac1ca4cf7ff.json and https://artists.proofprofile.net/proofs/artist/223fd99e-8e46-4d4d-9d0d-4ac1ca4cf7ff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).