A bun is a type of bread that is round and small enough that it can generally be eaten hand-held. Whether a bun is considered sweetened or unsweetened differs between countries: it is considered sweet
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 0xa00c05d5443a567aab27bd19a51f6bc2ea9dd5cd5075a69e7b49478ced932896. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa70c9c9-eda2-4ec8-bcf7-8d4db8a14f94.json and https://artists.proofprofile.net/proofs/artist/fa70c9c9-eda2-4ec8-bcf7-8d4db8a14f94.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hustlin',Grindin', & Head Bustin'(THE UNDERGROUND ALBUM)