Gavin Hardkiss (born Gavin Bieber on November 29, 1968) is an electronic musician, DJ, label owner, producer, remixer, author and artist who has performed under the name "Gavin Hardkiss" and "Hawke".
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 0xf1a1edfcafd8b33098fc11ceb6ae3cf66c47c2621f6dc2f391181b529afc649c. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5f892101-7fe8-4c5a-acc0-e546d8504ee1.json and https://artists.proofprofile.net/proofs/artist/5f892101-7fe8-4c5a-acc0-e546d8504ee1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).