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 0x026a894b9e435065e8f07dd273b0e95ce0efe626b031c82fe03eb886f857cc9d. Chain 2 (Bitcoin): anchored in block 954139 (2026-06-17T21:12:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/800126be-ae49-4294-ab29-c9846c475aef.json and https://artists.proofprofile.net/proofs/artist/800126be-ae49-4294-ab29-c9846c475aef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
L'Aperitivo Italiano (The Real Cocktail Lounge Ultimate Collection)
Acid Jazz & Soul (100 Jazzy Tracks with a Touch of Soul for the Summer)
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 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 0xd2c33f11db9d9cd9090a5528eff13c98c39aa29cda5aa18f9fe02ed6ad0cb063. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITI020200045.
Café Noir Musique Pour Bistrots - Bossa Brazil Vol. 1
Acid Jazz Classics, Vol. 1 (The Finest Club Jazz Tracks From the 90's Till Now)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454025cbaf516b02b0b2f8b8fa8d927eedc26a36161e8209c7dd0f8a87b49c6c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITI029800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee85bb5a120653a145855b6406813770c9e6e2cfbdaab78e50ad94468bb4f601. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITI020000044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b88e1596a84cf8d51968d5f7f4ea31f0b7286a34c0e35bb00ae1651609f4050. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITI029800280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d9e0274a95c12e189b24059c9d8012e8ec2c9f1d22ba97156fac128adf32d1e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITI020700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d889a3581f461370aa749fc6e9c034c30b4a82a2a7ed7660ae0b3ae5566528. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ITI020400122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ccd8503815eba48eb48dd4f0092cd21231c768e7de162dea2f0f204f7e3fca9. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ITI029100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8398e235d2d6cdd337ca444e6a978d9b43a18308e153f23289b166e3ade3edca. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ITI020800285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7838b32a9b477cf9a3db8f917a42b807cd6327dbaff1874c89f4f0bd77dd8df4. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:56:39Z), 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/ITI020800026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ec88fd996dfdb7557972a61aa9086fd95ce7998220b927f16094eee2dfbf95. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ITI020300073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0386e834437cbcec652539855fdee46884d8aa61f481119a141bfdf366d18732. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ITI029800152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b45c8c8488921a7ce1a2542342da4fc5e63bb95b6b64c5af0d618db06147d07. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITI021900547.
It's a Groovy Thing! Vol. 3 (The Amazing Jazz Funk Sax Sound)
Acid Jazz Classics, Vol. 4 (The Finest Club Jazz Tracks From the 90's Till Now)
Jazz Funk Instrumentals Vol. 2 (Funky Soul Jazzy Instrumental Acid Tracks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18f06b7fa3ac50dd150cb2b4be62036418df38b863a862b5bd784ac64475503. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-21T19:05:04Z), 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/ITI029800284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49fd558d66ff8ddeaf71dfd6c0b6f9c82f72ba8952f39b654507201d7cb0b328. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITI029800286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18f06b7fa3ac50dd150cb2b4be62036418df38b863a862b5bd784ac64475503. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITI029800284.
Acid Jazz Summer Grooves: Pure Acid Jazz 2024
Romantic Sunset Cocktail (30 Lounge and Chillout Tunes)
Funky Lounge (Jazz Funk Soulful Beats and Grooves)
Café Noir Musique Pour Bistrots (Acid Jazz Vol.2)
Christmas Acid Jazz (Nu Jazz Funky Soul Downtempo House)
Bossanova & Jazz: Summer Bossanova & Jazz Vibes 2024
The Best of Acid Jazz, Vol. 2 (Jazz Funk Soul Acid Groove)
Café Noir Musique Pour Bistrots - Cocktail & Lounge 1
Nu Jazz Journey (Electro & Acoustic Jazz for Your Trips)
Aperitif in London (Nu Jazz Bossa and Soulful House Pre Dinner Music)
Acid Jazz Instrumentals Vol. 2 (Jazz Funk Breaks Instrumental Tunes)
Summer Lounge 2016 (The Best Chill Out Tracks for Your Relaxing Summer)
The Latin Beat (Latin Sound for the Dancefloor Clubbers)