Alberto Bertapelle (23 December 1958 – 23 November 2016), better known by his stage name Brainbug, was an Italian symphonic electronic trance music producer and guitarist from Ceggia, Italy. He died d
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 0x90a0390e1cbb43b292d3750e31a642e5290e8f67517e42f7a02850a68c6baa52. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ea36b12-6d92-45b4-a7dd-fb02b9ba12e5.json and https://artists.proofprofile.net/proofs/artist/9ea36b12-6d92-45b4-a7dd-fb02b9ba12e5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).