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 0x1a79f9fb33b9e5e3b7afcc8552598e20440bc1ca7de39303ce1a0eefe4ff91be. 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/f8492bea-ef01-4bea-afae-8d4fae9c20e0.json and https://artists.proofprofile.net/proofs/artist/f8492bea-ef01-4bea-afae-8d4fae9c20e0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Don't Look Down (feat. BANKS) [Mild Minds Remix]
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 0xf464134f7f4d6c0131dd60e4cd5fcd70ee40fcff3399fe0c72b0be5ebaa78548. 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/USQE92300178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4250bd44d4e13aad65c6bf96478b2b753cb1c3d6aeac688c3224211ab7f2e4cc. 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/USQE92300093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54bd94d55bdb1b63d835cd737c84283e2dc128258d2e809d53ae94727b0c60c5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GB8Z41200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7824633c03ca7b7774201e2edd2ddb3d965a90c35e3b795a8fff395fc1748b0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM71712796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f1b542a0d6ea962f7ec879974c87a63be8e984692a46370225fca09109d6c66. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUG12303213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08619e7b9d798d8e977dc7e522ec9c083cce038b1ba3398908c50117d083cad1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZJ842004065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c44523d9c19cd5b5446b6afb3802cd923009dfcbbdc17942bdec4a60dd5826. 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/USUM71904861.
In Between (feat. BANKS) - Bonus - Slowed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9625e8e73dae60ea4029be1aab5a7750f0be4e8768776c06da72f26533de09a4. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T18:05:27Z), 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/USUM72318246.
In Between (feat. BANKS) - Bonus - Sped Up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4da20c690b87ac59a52c002beff48db1029d13b3c2bf89fce592595cac68b9. 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/USUM72318257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7d695156d814d2389f45b6424ac414a093190334e30dfa3d4bcf10e70aad06. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUG12206821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4250bd44d4e13aad65c6bf96478b2b753cb1c3d6aeac688c3224211ab7f2e4cc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USQE92300093.