Ralph Anthony MacDonald (March 15, 1944 – December 18, 2011) was an American percussionist, steelpan virtuoso, songwriter, musical arranger, and record producer. His compositions include "Where Is th
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 0x598507715ecae623a18ae6ebbd1e84a8d7266b6603bda870e0be0618484f1a2d. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0b7eb688-27a7-41b6-a84b-5b4ee1c49763.json and https://artists.proofprofile.net/proofs/artist/0b7eb688-27a7-41b6-a84b-5b4ee1c49763.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).