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 0xd7956c50aaf3c13f70e57c0a36ae827358598d3dc5c9638d8529c579f31ff5e5. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/22956dba-3fde-405a-a428-64c4cd81b735.json and https://artists.proofprofile.net/proofs/artist/22956dba-3fde-405a-a428-64c4cd81b735.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 0xf0c4fc69d3d8e83e4550fb775e35cb0af0c94a0fa716d31b490ebfebdf0be710. 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/PL2B92400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c4fc69d3d8e83e4550fb775e35cb0af0c94a0fa716d31b490ebfebdf0be710. 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/PL2B92400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c4fc69d3d8e83e4550fb775e35cb0af0c94a0fa716d31b490ebfebdf0be710. 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/PL2B92400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de3e22f08e3cfd4927b9e7977fc90896d7e2a8158a6973863f38d170f796e53. 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/QZFYX2202092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0fc6a0934e9b21a5a24bc52d8a228e21eca3d2eed183eb32854e4cb0b68fe79. 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/QZJ842002339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934954e192586674eabbcfaf243e1fe3a754397640d65b1a7ffe3d027cf89eda. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DGA052083561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7f5ec4b421c930ee17cf18ae99837d41d87d868ed185ffb4378f913dfc3c84. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USAT21904691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87d33f4c4dadeb958cc524b9cdb9c5a9db424d1d842dd546f9ded52752ed8b0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZFPL2100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87d33f4c4dadeb958cc524b9cdb9c5a9db424d1d842dd546f9ded52752ed8b0. 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/QZFPL2100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38cba3bca33782a7ab0ea562cc9a12189976d78103a29a905a79e171e94e8f7a. 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/QZHN82110168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea79f0c413e1e5773ab2ec2fee3f2c7ccdec983b97c8fd7af5096c0c4d7d74b0. 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/QZJ842001883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6968f0b873c7fcfb4e550e5378b1cf56cae00e585ec766ff71c2576f6ecbf2bd. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZHN92060027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a0c6f7e553abfc2dabb499bdae0d4778635bedb9bf7932278bc67e6d4a0db0. 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/QZHN92060029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66edca19d63e8bd17f28a4ff592b972bff43af4641738e0d7c80876f1d440f9. 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/QZHN92060030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43e3a697d188e48bfc1dea517b8bfd3564e1df5a98cb97c513597914194c7d0. 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/QZHN92060031.
I Don’t Like You (feat. JELEEL! & Candy Bleakz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb315181cddb1fbe59366a2431c99915622862e05f329e9131f560f341014d67. 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/GBUM72309603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028fc3c3910a9c61c8ec797436590ddbbd7f526197d674147291d788ca4c5eb8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZJ842001784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x923f0f684b07cc547f09bc9f9126b9ff1dfea40dfb704d8472ff22ca80498ae6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZJ842001785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f3dc83f6639eea5e67de3b611e78ba7536e7299f892a676da63d69c30af3df. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QZHN92060028.
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 0x44db0f8ac684ad215011f9bdadf47ee5e4c7e6f63ba3d0c8b7668ddb12cf7ecf. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZHN92060032.