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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aee6482b1581fe7cff5769e4fac345386658566dc074fd08eea5268e3b429c8. 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/e1607b84-94b4-46ae-bdc9-346e3e711085.json and https://artists.proofprofile.net/proofs/artist/e1607b84-94b4-46ae-bdc9-346e3e711085.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
The Position (feat. Snoop Dogg & Ice Cube) - Single
Smoke The Best (Snoop Dogg Presents MacShawn100 & E-40)
The Position (feat. Snoop Dogg & Ice Cube) [Snoop Dogg Presents MacShawn100]
And U Do Know That (Snoop Dogg Presents MacShawn100)
MacShawn100 And E-40 Smoke The Best - Dirty Mix
MacShawn100 And E-40 Smoke The Best - Bonus EP