1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x86a0ded56bd4864c5fd6ace49c55bcefa9c7c8768598ab867ba13da6979c109f. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/52dc826e-09e1-4f58-92a5-a3214f40ccca.json and https://artists.proofprofile.net/proofs/artist/52dc826e-09e1-4f58-92a5-a3214f40ccca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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Muhal Richard Abrams: One Line, Two Views
Tribute to Julius Hemphill and Don Pullen
Muhal Richard Abrams and Marty Ehrlich: Open Air Meeting
Maple Leaf Rag (with Muhal Richard Abrams)
The Essential Anthony Braxton - The Arista Years
327 (Opus 40P) (with Muhal Richard Abrams)