Llwybr Llaethog (Welsh for Milky Way, although the Milky Way has several names in Welsh folklore) are an experimental Welsh language band that effectively mix such varied musical genres as rap, dub, r
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 0xbcff685df83cb32e443727aa7b638adf06da35746031e6b82985d055d9f930d9. 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/877be841-53a4-4460-a2a0-ca11076649f6.json and https://artists.proofprofile.net/proofs/artist/877be841-53a4-4460-a2a0-ca11076649f6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
BBC John Peel Radio Sessions (1987 + 1989)