The Curtis Counce Group (later released as Landslide) is an album by American jazz bassist Curtis Counce recorded in 1956 and released on the Contemporary label.Contemporary Records discography access
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 0xd80e007e3eb038dd5d305d7c39afa81b706981615d0e1a637dccec18c63ff4a4. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d53dca41-fd42-47c5-b827-dab4b7698314.json and https://artists.proofprofile.net/proofs/artist/d53dca41-fd42-47c5-b827-dab4b7698314.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).