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 0x87866708ae55fb949ffa0744e7e0a203f7777a33f6247e79cfebdb8b73b24de7. 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/347942f3-a4d9-436a-8a2f-211cd7a9963a.json and https://artists.proofprofile.net/proofs/artist/347942f3-a4d9-436a-8a2f-211cd7a9963a.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 0x52d5609df5044c2aec930d4e04e6c2368a3ab654b71ea9098f4d2485530977ac. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USUYG1053084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3854822e119df466b7d1de0667751d0ecdb0709ec4068da2cbfeeaeaf3c2c36. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/TCAIY2487558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a72cac0001eb6fbf733e4f202a5a8a7fe0220ccc827c90287f0b5d5f8175b1d. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:24:15Z), 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/TCAIY2487565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4fdcae2c685f24695c74b5cfdda1e980418aad7ecc780b988caeef7eb82f1dd. 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/USK560760005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e3ab28e66394df272c0b8f25eb7cba286c935f2e1798db0b9b4bae37088276. 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/USUM72000774.
I LOVE YOU (A Dedication To My Fans) The Mixtape
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcbd32e6565f3e1591c057ae799535086844c04d747ee01c0c42d3723b8c5449. 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/USUM71106055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac89f3c04d914b2869afd111d167c5d075451a349ab2b03c6040c3d5b183a21. 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/USUYG1112834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55fa734150f3d849e74960b29036287796a464a164170ce7b8c1d04efc1bc8e8. 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/USKO11501523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690aeecb671746f9890031ba6725d872714862a61d5611dbb613b98c6ced02a9. 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/USKO11501525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d56aeae16c0ed71175a23d045ca3b7e067231aec6cbb4038a0d25f0647b3ac. 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/USKO11401681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c46a5f91d4b21d6648d4203b0456dbaf06419421b5ace1be9e36b254840ceed. 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/USK561560006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424e69f2c4ce9c149eeac0c005a6a4568c56117e4c02f451b274f6b247064d71. 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/QMDA71305827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09821d88a3de6d5657800e5c23be2bd1bd3103c0454a6951d8526da53ec98227. 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/USLD90812367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc977da3c032def3e049ed4d43078c3d448832f4a1f27f06cf16cb9e7464f034. 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/USUYG1181335.
Made Bosses (feat. Emanny & 38 Spesh) - Big Ghost Ltd Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f67340489eb1a8c4738dade42f1c3233d9cc4fb77f312377fa8cdd575bdcc1. 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/QZNYS2100248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f614382e0510ba7c70250bf1e900cce633d1ab370c331aec209ee80722a839. 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/QMDA62337385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19caf191a2dfb5fd06f01b1de28d241a9a819393c3855a269dcb22f8fea879d5. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/USK560760011.
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 0x12642411214ce1a64de488b166995c959d2d91bc89590d389aabe3a22571e13f. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QMFMF1533879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4a022c8846ac7914abc2cbd3f4f826d6717fb2e744c44dc97bd7c54f78deed. 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/QMFMF1578206.