Irmelin is an opera in three acts with music by Frederick Delius. Composed between 1890 and 1892, it was his first opera, and was not premiered until 1953, nearly twenty years after his death. The lib
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 0x581b71c3604f3104475a4a27ef8ff52ba73b5d43d290b146075cf08182821e6b. Chain 2 (Bitcoin): anchored in block 954004 (2026-06-16T21:01:04Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/32e30d0e-99d6-45cb-a471-d43bb44fafa7.json and https://artists.proofprofile.net/proofs/artist/32e30d0e-99d6-45cb-a471-d43bb44fafa7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).