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 0xe7a98927032b5586119bc060ff8ffeddfe3b33cd47e93608cd710bf12b1e78e9. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f2148974-ae47-4a81-8525-3b2d98d3a9c3.json and https://artists.proofprofile.net/proofs/artist/f2148974-ae47-4a81-8525-3b2d98d3a9c3.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0061a10a9e4b358c1651f5bb98bfaaf0766c2c6fc5cc8fc28307f1df1704e3fe. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUM70853278.
Not Myself Tonight - Jody Den Broeder Radio
Not Myself Tonight - The Remixes (Radio Edits)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da0bcb577311f299e761141ac49df76138f6cc52beb5b672c2031abab116f60. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USRC11000351.
Fire Burning - Jody Den Broeder Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3723b62426b1bfd0723f920357d0a0b012eb738671f0e976022b0e3b7c32a268. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USSM10903465.
Fire Burning - Jody Den Broeder Club Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f628a81cdd8fea2c4ab7d8a858d539ab7950e64ecd3d1ea4bccff6962eb62c. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USSM10903464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a47fd5b4daf288f6b6f8841e581f5b4652f24dd56a4fe22da365db7b7b95b3a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USUM70803721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6723ef39090943633d75b8c3d1fa70f918258f64e65c36106ad126619961fb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USUM70803731.
Hard - Jody den Broeder Club Remix / Just Dance 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69c45ddfa43b1c50b9a87030468d788097d7cf05e9a8a423a3fb1a1a3409e40. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUM71008012.