"Fire Flame" is a song by American rapper Birdman. The song features a guest appearance from fellow rapper Lil Wayne, who was not originally intended to appear on the song: however, his vocals were ad
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 0x92005b33af2dac6b922f6c39c5dde7605f5f8c274540f8ca07323138563edd27. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fca98282-0b52-4991-b0e8-b221400cd77d.json and https://artists.proofprofile.net/proofs/artist/fca98282-0b52-4991-b0e8-b221400cd77d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).