Bolland is a surname. Notable people with the surname include: Adrienne Bolland (1896–1975), French test pilot; first woman to fly over the Andes Brian Bolland (born 1951), British comics artist C. J
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 0x48edc2a7a25e6f9f952025606322789e7b0b9a7349fd88d6b96fa9cb772a0f88. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b2717dc9-5bb5-4794-aaae-0a1dbfe0c1d8.json and https://artists.proofprofile.net/proofs/artist/b2717dc9-5bb5-4794-aaae-0a1dbfe0c1d8.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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