Orri Páll Dýrason (; born on 4 July 1977) is an Icelandic musician. From 1999 till 2018 he was the drummer for the band Sigur Rós, which he joined in 1999, shortly after the recording of the studio
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 0x2bc434b4452df85c96615325acb0d19244c994bd006b83757832704ad31c0f17. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a47a6c34-bc83-4c24-8f48-526119b45add.json and https://artists.proofprofile.net/proofs/artist/a47a6c34-bc83-4c24-8f48-526119b45add.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).