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 0x5b6029663eeab23d8c2908d7d190a8cefddcb6fe1e1d8fe53c4155601e3d29ce. 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/6f367bf1-4e69-4ac8-b1b5-580ee103b992.json and https://artists.proofprofile.net/proofs/artist/6f367bf1-4e69-4ac8-b1b5-580ee103b992.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Intimate Duo Jazz for Côte-Des-Neiges Montreal
Touching Bossa Jazz for Good Times in Little Italy Montreal
Background Music for Recharging Spring Holidays
Heavenly Big Band Ballad with Vibraphone - Background for Refreshing Seasons
High Class Trumpet Solo - Background for Quiet Day Moods
Trumpet Solo - Background for Inspiring Ideas
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe392f98469eaa29c5846ce595803495c52d0aff9f2f0eb6f1307ea71c2447352. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUC1F6850555.
Jazz Violin - Ambiance for Coffee Study Zones
Grand Tenor Sax Jazz - Ambiance for Coffee Hits
Scintillating Piano Bossa Duo - Background for Cinematic Melody
Simplistic Background for Chilled Minutes
Night Blues Jazz Club: Whiskey Blues, Midnight Jazz Blues, Electric Guitar Blues
Música tranquila después de estudiar intensivamente