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 0xd41934075a63cfbe57520c7346b3560c3715f65b27e7eb4d662a9d1668edf68e. 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/384cde35-d674-44f4-a919-7c801604d4a7.json and https://artists.proofprofile.net/proofs/artist/384cde35-d674-44f4-a919-7c801604d4a7.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 0xab8714ac3c0b42f75a10d624d9083ef7f0093b6ccf92336ae0915adb935711ec. 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/QM7282394211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba3a71f97b844e26a58d1e68bd58a80e2411c062dbddecb85f4070a8781a6e2. 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/QMBZ92378790.
Baby Father 2.0 (with Myke Towers, Arcángel, Ñengo Flow & Yeruza)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591b395e30336226e0bf56a45eb77dd40e81a2b65a113998ff4cd0c3df8a249e. 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/QZWA32200093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e0508fd814e13ce7b8b0ee770882aef1f14d054eff2bb572d214ad4d7b9c55. 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/QMFME2242537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0449fc1c1cadf569c3d741b889fd8ff3b7f13655cbbecb8281d2cb4196ce7585. 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/QMFME2165353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b75324b513718f5c4b7f85fe7634c82e0672de525611771f7d92f4f2c43051a. 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/QM4TX2337647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5eb16c731d036ecddf1e13d3d9c0c287d166b11b88bcee0b3fbf3605cd1e9a. 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/QZ7B82000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad6a22a9049990de8d6b944b229ead9a982f47fd7e8cda3ab0d20bdfaa2bfc2. 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/QMBZ92270335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1995cba1c2c6f2cb61f2ae11498ee6358722fbbe1585d4e26f666bdf8e8bf72. 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/QMDA62312753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd5cdd9a0856ab47f89fb5d679af6b50d59f193e37085bdbd7bacb6debe59e7. 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/GBKPL2165925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794887fcd2c19fa0f687133be97c397b4856555984b5cc0c6ef9f8d70fb6aa60. 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/QZHN22000125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0449fc1c1cadf569c3d741b889fd8ff3b7f13655cbbecb8281d2cb4196ce7585. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QMFME2165353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd621fbea0d21bc2d5e6a1e5ee5903dcda9d7f13c2935e57168b77e785f836945. 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/QMBZ92396118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d00ff85bd5cd2ab7debdf16daf3199f096d84e4f027534628ed233fc5a1a19. 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/QMBZ92396137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbedc586015da3efc6a6d10e1cb875201e75ddf8c27fd17161c000a4c8452c527. 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/QMBZ92396150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9394dde37df7429ea52cd3b4c27ee3ba4de75c0c1d5bbea26c0a5612234b65ea. 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/QM4TW2344902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579cf73a5e58f879fdab58baeaa2905892308b5d0f0479eb864109e7af50773b. 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/QMBZ92396179.