Adam Lopez Costa (born 26 August 1975) is an Australian pop musician, vocal coach, and session vocalist. He is noted for his ability to produce extremely high notes in his whistle register and for his
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 0x737958ab32a731ecb2beae403b0840db1b6f89e01d314aeb5969207e4799e488. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8f9b18e-a083-4acb-b11c-b4cfd57b8ec4.json and https://artists.proofprofile.net/proofs/artist/a8f9b18e-a083-4acb-b11c-b4cfd57b8ec4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).