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 0xad1badf2fe861456106998e0eb8ae6a768ebff11638f7ac10fc5cbe067c6a87c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/79ace653-c298-4d6f-9cd6-85f137f501c0.json and https://artists.proofprofile.net/proofs/artist/79ace653-c298-4d6f-9cd6-85f137f501c0.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 0xec4a93b3dc4553c6d73ce978031750056b05384f4356cf07ec7f1e07be25d601. 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/USAT21404491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd3557b4128138d0e4d9b76239f2f96eeadc0210839e6e28eab62b59d30eab7. 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/USAT21603267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3128f7e43516055af8173a65907de144e1dd1ce4d5544a3bd1d07bc2ff5b20. 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/USAT21603271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ad8c5da3a28180cb44504a3661341ad546ba38f383c5045cc6820fd4e79f19. 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/USAT21603272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x493ae1bf72b625882ba49315ad1572ddda5e308d94a4b13d5b0e42022a9ddd63. 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/USAT21603274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67202d08bcddc8866e6d86b85d64d6ed02752dfc57fef4eb721c98f3fb15231b. 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/USAT21603263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe8f7fccfb6ab8eead6c63e1ddf8ce2611400ee3ec80c86c67ac82673ecd07d. 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/QZRP42243259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc903c47e1ee122af34a003e382668d565504399e23a23227da24dfedb9538f2. 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/QZNWW2277685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8cd51e71b6a7d13ffef94bfa59c46506fc5c91e1210b99ff4371eb200bebb9. 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/USUYG1440128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a628b1a05da0a65441f496128f9d46c58d246628e8e8f9d6e1b27602d08e32. 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/QZMEM2224221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb45c54d9810bf63fdc393312e3fd03e5d0bb03dedb5311fec00f45562292eb0. 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/USAT22103367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934bf61e6035aab7e480f4a59029b2462a03799abb359df710c2850451b228f4. 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/USAT22100265.
Back To You (feat. Chris Brown & Charlie Wilson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14dc92dede44b0b5b4195ed828c65260d46b86234437cef001e74c549a34100. 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/USAT22006251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c4a6b5d0c563a6bb2ef030eafc4b12256d94e74c8fc808c8038844905e7d22. 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/USAT22002462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4680d7e86616d2996bd35d7fe25b331ce1f44ad1acb85b1aa1f50994043cf720. 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/USUG12000648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa954de72858024f87aeeb17ff329ba1fa8e07d2a77fde57e66fcc5ebfabf8d47. 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/USAT21906104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060c25b0dd995ed8708413001c70e9711f86be7189c633b280b565566e0f6d4b. 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/USAT21904542.
Bae (Remix) [feat. G-Eazy, Rich the Kid & E-40]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe727fb7e79f7e062690f834ff8e61deac155857e37a77cab2d7c23aeb33a48a8. 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/USAT21902784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170fb8afe5edc97f16e95c208bfb07e68589709442b2d0f3f591d236f716d0b6. 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/USAT21903050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc828b29a4618b0f54b35d98c08159203da27a1bbb1528f2b301628093f0ea3c. 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/USAT21812672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480c5c358bf6f117db397c2dfaf060e95737323c7c6404f682f6663a5450608e. 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/USAT21802805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d353b54f96c0035f09f499fb100977ac4906310afafcd27b22f2055c8537e9. 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/USAT21800852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629c2bbf7bc18b1029f67765011093af88d90e15c0209567fb9a97640d0ca3ef. 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/TCADL1836597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf042ddbfdb0d002d96370663237a3d7c4513c2bf28f7d110bdfbf969848fde55. 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/USAT21703567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1fd359c4cdbbe33c808bab22a2d03b3a1f2cfec155efe1fb48dad6be7229b13. 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/USAT21601265.
Cut It (feat. Young Dolph) [James Hype Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365559e9b3eca0a3d66e7f80e9f1c32917a4f91417501308ec5b5af7f2edc7c3. 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/USAT21503392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31fd5fb6c09fa1c16056c71f1a0bde07517781add315ad0dbb8dda1dcc756a0a. 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/USAT21502521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c78c16460587e3a191dc89dbf9e9cd22e96597df93feeb00d9a5700cee281e8. 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/USAT21500768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f1f04ccfc654f7a39204c2caed83bbb9fd4c283e0fa6e300297f6f0caa0369. 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/USAT21500700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db918f955ba04426f815ed69db0845d0bdce504b26502217b3f35c8f10dfbd5. 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/USAT21500701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c0a86f36c1beed94757aeda7e63f53b079d7072d6005d9009622a5a48aed001. 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/USAT21500705.
Bring it Out (feat. O.T. Genasis & Future)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0720ee951f81a1e62b50e0339e67d5e50c25ee1e32cda3039d7294050ecf7ee5. 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/USSM11803238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe14db2ce3efddbb7f018b223a441e5e120d9b5d19574d03d34a8d975e03c031. 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/USUM71713499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c864ca96d03d1e4aed30d736364fe252cb77ccf9e62787e2b13d4717de7b47. 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/USUG12000379.