Haldor Lillenas (19 November 1885 – 18 August 1959) was "one of the most important twentieth-century gospel hymn writers and publishers"Kenneth W. Osbeck, 25 Most Treasured Gospel Hymn Stories (Kregel
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 0x72f538753a9e2754eede0d48b9631f78cb9fe0d607258ade9b5c82a21a345850. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/247336b5-c59a-48b0-a0e6-d2151419c697.json and https://artists.proofprofile.net/proofs/artist/247336b5-c59a-48b0-a0e6-d2151419c697.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).