Selfmindead was a hardcore punk band from Sweden. History Selfmindead formed in the winter of 1994–1995 in Eskilstuna, Sweden as a four-piece. Marko Hautakoski on drums, Timo Sillankorva on guitar
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b6476f38149b482c40b80ad3114081ceeb7db49b05d70163d8043177ec4edd. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/874e6de1-fca0-413e-83b7-bc9b75b343ed.json and https://artists.proofprofile.net/proofs/artist/874e6de1-fca0-413e-83b7-bc9b75b343ed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).