Edward Lodewijk Van Halen ( , ; January 26, 1955 – October 6, 2020) was an American musician. He was the guitarist, keyboardist, backing vocalist and one of the primary songwriters of the rock band Va
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 0x31bd03460d1a1469e57ad56320a2ae426ac17de5ad344866f451ccc561e06a6b. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3163869d-520e-424e-9297-7c098e06d285.json and https://artists.proofprofile.net/proofs/artist/3163869d-520e-424e-9297-7c098e06d285.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.