1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1391e2d949c61c2eec4ed1699458c4cf58457d0f4ff8038ea1ba9c8d547375a3. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/de108c15-b689-4cda-a401-1e9d0b98eb06.json and https://artists.proofprofile.net/proofs/artist/de108c15-b689-4cda-a401-1e9d0b98eb06.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
He Who Longed for the Stars - 2019 Re-Recording
The Grinding Silence - 2019 Re-Recording
Where Dream And Day Collide (edited version)
Where Dream And Day Collide (album version)
He Who Longed for the Stars (2019 Re-Recording)
Katatonia Presents... Peaceville Dark Classics