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 0x75b48a5dba4d3d58ac8c403ca99ed30c3f98c2fb3eae3ae92d92107deac8573b. Chain 2 (Bitcoin): anchored in block 953602 (2026-06-14T06:58:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f7c2a22-b49c-4a38-916a-75336115c6c6.json and https://artists.proofprofile.net/proofs/artist/0f7c2a22-b49c-4a38-916a-75336115c6c6.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 0xabd9686a0c7564506f8404541d63fd737278a28f4e3cf181ca06960d8bcc7c4f. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/AUXN22191365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b2d3802e936d5903ea6641a0c182b350a46e382e98c4dfaf7fea466dd39da6. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/AUXN22191366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c9e7218a8d4cc88a73b5ed4e679451d9a787c2c605538be4d166aecd53472c. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/AUXN22191372.
Mistery (Nu Ground Foundation JazzFunk Mix)
Loop In Harmony (Nu Ground Foundation Soul Mix)
Bad Alert (Nu Ground Foundation Soul Mix)
Irregular Season (Nu Ground Foundation Soul Mix)
Crazy Wah (Nu Ground Foundation Soul Mix)
Diamonds (Nu Ground Foundation Soul Mix)
Downbeating (Nu Ground Foundation Soul Mix)
Dreaming Nelly (Nu Ground Foundation Soul Mix)
Hammond Kiss (Nu Ground Foundation Soul Mix)
Far from Home (Nu Ground Foundation Soul Mix)
Floating (Nu Ground Foundation Soul Mix)
Nu Salsoul (Nu Ground Foundation Soul Mix)
Remember Me (Nu Ground Foundation Soul Mix)
Restless Night (Nu Ground Foundation Soul Mix)
Roadhouse (Nu Ground Foundation Acid Jazz Mix)
Dirty Daze (Nu Ground Foundation JazzFunk Mix)
Suspiria (Nu Ground Foundation Soul Mix)
Philadelphia (Nu Ground Foundation Soul Mix)
The Ultimate Seduction (Nu Ground Foundation Soul Mix)
Imagine Hall (Nu Ground Foundation Soul Mix)
Smiling Box (Nu Ground Foundation JazzFunk Mix)
Blue Velvet (Nu Ground Foundation Soul Mix)
Cinematic Experience (Nu Ground Foundation Soul Mix)
Profundo (Nu Ground Foundation Soul Mix)
Harmonic Life (Nu Ground Foundation Soul Mix)
Eternal Flame (Nu Ground Foundation Soul Mix)
Flashing Lights (Nu Ground Foundation Mixes)
Mia (The Nu Ground Foundation Underground Mix)
La Luna (The Nu Ground Foundation Underground Mix)