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 0xd440bb84bf71dd4c3360ceea9cd0f311738871cf8d4b68daadcba2c64a2aacca. 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/7de26db2-b7a2-4117-b4bd-8166e7686358.json and https://artists.proofprofile.net/proofs/artist/7de26db2-b7a2-4117-b4bd-8166e7686358.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Spin With You (feat. Jeremy Zucker) [Boy Blue Remix]
Spin With You (feat. Jeremy Zucker) - Boy Blue 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 0x6dc2ad5d34c57b3fc63a0490effc1fc36cd655cda27536376ce1113b68166ce3. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/USAT21901952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101b6d3adc78507ed7bcccfad5f3a1c429b36f67d0855ae7491fc434ef7a13c3. 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/USAT21813024.
Spin With You (feat. Jeremy Zucker) [Ashworth Remix]
Spin With You (feat. Jeremy Zucker) - Ashworth Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f274682736370c566901d75863e567c1309a742347c31bf0c4600925cca1384. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USAT21901690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb59ece9dac10a90996b85e2f5bc0d456c6ab2379a0b9dffb00ea3959ed83fcf. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBKPL1972761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2cf50b7bf7ce39c16c8da6906b9abb055c7af2b8c4569136288c6f3b404e7b2. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QM4TW2577066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1cc1ee0abd2a5112108b458048ed4ead49b262e6da3b566add4470997bb29bf. 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/NLRD51632613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13c46fd49c7bc5a76a68bb841c13a8d569a12803540fbc939f3c57a42d9d00a. 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/GB2LD0902588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8028b1975c1e68fab447bec34a9b4be7615e77c6c761fdf264b364ef664e0dc8. 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/TCADI1752339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a5b92afb3069111d99baf42920a3f3ea33a74fe904ee340b90258f9238deba3. 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/TCADD1739846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13c46fd49c7bc5a76a68bb841c13a8d569a12803540fbc939f3c57a42d9d00a. 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/GB2LD0902588.