Jimmy Giuffre 3 is the 1957 debut album by the Jimmy Giuffre 3. Track listing "Gotta Dance" - 2:29 "Two Kinds of Blues" - 5:10 "The Song Is You" (Oscar Hammerstein II, Jerome Kern) - 3:52 "Crazy
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 0x843f49e439fbdcdf0c7ee5ca58e1aeecf70b0fc751a50536c2d67540126a89ac. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9485f54f-c86b-4803-90cb-3a41a19c7400.json and https://artists.proofprofile.net/proofs/artist/9485f54f-c86b-4803-90cb-3a41a19c7400.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).