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 0xcdf29d0c354e0db98c846637f17ed771d2871f271cd366d0a4cd8415d3078889. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/52297428-d4f1-42f4-81a8-f1a4d650cb75.json and https://artists.proofprofile.net/proofs/artist/52297428-d4f1-42f4-81a8-f1a4d650cb75.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x13c9a592c915354b60b138ffa0cc92bba3baff8cd482a7cdf8decb888f86f08c. 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/ITI022400045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5872323274d9710d87237d46ac2ee255a5944d50336fe8c937db87e777aa4c. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ITI022300678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260f1e444616b9994a130be77c29d2f0a9ee22429cb3321e4ba601afde9275fd. 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/ITI022400373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c9a592c915354b60b138ffa0cc92bba3baff8cd482a7cdf8decb888f86f08c. 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/ITI022400045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa326ecd1bdddb1155023a5afd40bd661e81159312823d1c424aac650821f573. 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/ITI022300313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6376810276fad24ca514b0b47587f7639c31569ba5676031589b22cbbf247a3. 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/ITI022300316.
Don't Let The Flies Eat Your Marilyn's Painting
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf425a650fa1ad22e910bdc05c63a8d0ce11b7ec6142e48f2f28aad0cf8f5c645. 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/ITI022300222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3feb96eb9f2576a12f693ce6ceca70e3471b935a7e99e72dabf3866ed50b2358. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITI022100332.
Acid Jazz Summer Grooves: Pure Acid Jazz 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0844ef6420ed0fcb8ae140750a199c69060e7e2e7acb041d53c342a334a46a1. 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/ITI029800318.
It's a Groovy Thing! Vol. 4 (The Amazing Jazz Funk Instrumental Sound)
Urban Nightlife Sounds (Downtempo Funk Soul Jazz)
The Afro Lounge Bar Vol.2 (The Best of Afro Beats Lounge)
Jazz House Grooves Volume 2 (The Finest Jazzy Soulful Chill House Selection)
It's A Groovy Thing! Vol.5 (The Amazing Jazz Funk Afro Sound)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3bcb45bbc5441cb1b7845b1abb5962dd51de5cec7c669721d74e63ea75d0ccb. 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/ITI022400369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bec7de3fadef35b966cf49ceed69aa0ceebc4ba44d057566659f6a92c973efb. 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/ITI022400370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8fc2ebdb7617e17e1a4aa657232ac9afb8a03f4e3dae860717749a19e8615c7. 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/ITI022500119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d879c1b4dd37283d70df0de7bcd9ee380119f84fbfa24b8bf66b745b76fb88. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITI022500120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5f0d36ddf26e266d43e3b4d6416fb2177f58be2ff746a3fe9ada9184f8de02. 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/ITI022500121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0550e1596d1a1201e88cbd7a9c439185e618fe181993baf2cefec78362162ce2. 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/ITI022500123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5eb3cab4b4e205851c70550d4ca9976e8e6eff2cdb6fae550cc88e5e8940e7. 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/ITI022500124.
Mondo Groove (The New Italian Funky Scene)
Nu Funk (The Best Acid Jazz, Funk & Nu Funk)