In Welsh mythology, Arawn () was the king of the otherworld realm of Annwn who appears prominently in the first branch of the Mabinogi, and alluded to in the fourth. In later tradition, the role of th
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 0xf36e26c5c3ac01f39fe3cac619df19e607c212ff456822e18fc851c087fb2017. Chain 2 (Bitcoin): anchored in block 954063 (2026-06-17T07:49:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/463d49fb-50ef-44b5-8377-ab5d70d0e0fb.json and https://artists.proofprofile.net/proofs/artist/463d49fb-50ef-44b5-8377-ab5d70d0e0fb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).