thumb|upright=1.25|Crystals of serandite, natrolite, analcime, and aegirine from Mont Saint-Hilaire, Quebec, Canada In geology and mineralogy, a mineral or mineral species is, broadly speaking, a sol
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 0x0bd31688fc0e9a5c86ef919298152fbbab93d98ec5074c6659e4ae03b4f4e3b7. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e38017f7-2c1f-423c-815e-ad31025f7c4e.json and https://artists.proofprofile.net/proofs/artist/e38017f7-2c1f-423c-815e-ad31025f7c4e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Where Do The Sounds Come From? (Album mixtape)