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 0xac8c2b0b14556c8838cb263b7d7b4dd88e00051a9df3e47c674557d1c14dc77d. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ddb66a7-d6a5-4fa1-b124-b5c2afb71eb9.json and https://artists.proofprofile.net/proofs/artist/6ddb66a7-d6a5-4fa1-b124-b5c2afb71eb9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
O, hur saligt att få vandra: O hur saligt att få vandra (Arr. L. Strand for choir)
Loftena kunna ej svika: Löftena kunna ej svika (Arr. F. Sixten)
Som en harlig gudomskalla, "Parleporten": Som en härlig gudomskälla, "Pärleporten" (Arr. F. Sixten)
Tryggare kan ingen vara (Arr. F. Sixten)
Oandlig nad (Amazing Grace): Oändlig nåd [arr. F. Sixten]
Med Lust Och Fagring Stor - Sommarens Sanger Och Psalmer
Visa Vid Midsommartid (Midsummer Song): Visa Vid Midsommartid