right|thumb|Bragi is shown with a harp and accompanied by his wife Iðunn in this 19th-century painting by Nils Blommér. Bragi (Old Norse) is a figure in Norse mythology, and the god of poetry accordin
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 0xce55e753690fc862096844565f4f5bce1f503108c0b91d05887f4f3f1cec5068. 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/8aa6d4a0-10d7-4cf2-97e8-41aaf82d742f.json and https://artists.proofprofile.net/proofs/artist/8aa6d4a0-10d7-4cf2-97e8-41aaf82d742f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).