Robert Racic (8 January 196425 October 1996) was an Australian DJ and record producer. He was influential within the local electronic and house music circles, but was less well known internationally.
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 0xdae1d5847396e7f6993bbcae6bc7d473b92ee7918437d19e7dad4d0755a781f3. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b01f03f3-9b27-4f6e-8aee-dcb4b8e99f56.json and https://artists.proofprofile.net/proofs/artist/b01f03f3-9b27-4f6e-8aee-dcb4b8e99f56.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).