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 0xa3b3aa436606106da0580bef1fa3b8203348891da3a8068acd63b1e84721083d. 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/4c84ae0b-3faa-4065-8002-0c05b4943c42.json and https://artists.proofprofile.net/proofs/artist/4c84ae0b-3faa-4065-8002-0c05b4943c42.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Whoa (feat. Chase Benji & Giz Da Cheifa)
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 0x61d7cc6fd069a2bd19788d95f80de619c2bd03bff134e24990be1523806be78c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USCGJ1524968.
Half-Time (feat. Chase Benji & Giz da Cheifa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09cad261184908e407c1e374f92d564aaae8ec774c38bf81e35e427f66ef53b8. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/USCGJ1524971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3722df5c08ef7aaf858d005093ff3b9b39eb03d9cb847482e2a217ebcf5a2d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCACX1750278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcecea61c5e5830c2d63c1f8a5a6fef5ba604c586076051f6523fb92b6f902661. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCACX1750291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1511ed2a7f31cdcb2ea6cc4fe8c1a863d2df5397dad6576c23c148f588b75e4. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/TCACX1750305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe9affb9d8b2cf5451bb4fdc653b37dbaf9fe3b8b9f46ef6d0721cff98793233. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/TCACX1750311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5f7bfbca875ec1bc37c01e49e6546e58f165649e19421ae2f0fd751f91c291. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/TCADD1718050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf999fb729e6fada8f69ba5619660b325829920321cc328dcc9e7e961bd202c16. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCADH1795103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b5b1911b087ec8aad92d74b429d8d51454a3f73de99e33486547aa15ece26f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCADH1795123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31325503268c585562231ebafe862e822be9b0d669a255e9551c6a02357b2d08. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/TCAEB1916431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a530edd841a879a5655948782cedf03d48d078163ad0ac0cca9ea5da741fec. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAEB1920004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf203ccb9da87a89d9758278e578acf9dffca5f2f4fa6fb50fdb21d7a6e87d6a. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/TCAEE1907419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24b4aec3b15ffac6f75731be88ae4142e05b58a7c8b7cc92ad1fd37692e72d0. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/TCAEE1907689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6ec5d969963c1f127fe0b8be07d5263c30e8c305cf0192b9690a79635026b2. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/TCAEH1987448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2efec63835d3a5c689dd87907b93f85a8a3ff8c02f6836fe45fe2700cbc153. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/TCAEH1987452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181dab7106f4420d5b4578c9c1d1c2f4f0afdb2633795b3c6c5e1595b517b8fa. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCAEH1987455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3c9a061a5117d478e1b6c4d1b1a949d60df25a33b38818250b81462acfff5e. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/TCAEH1987464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca99695851fd03fd968ddf6b5210871804dc557ec91421fe3bee611230d10608. 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/TCAEH1987478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b4852462707a8bc4d8b501b6252719c7d7b6dc42b44e71d2b242b4a2e56a69. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/TCAEK1927828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d121f60951563b4e754387ccad02eb26e6ae9b2062672b00d17038e0366067d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCAEP2045014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d554acc5697bb6267c84d1cbc8f01c8b8a1223d56f354119142b687a8199f7. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QZL382025406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c1d771bbe7770d0fd4e6783f98dac12f93d29503d806645b07ba8817819a814. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/QZNMT2115681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8b22881a2ca9c970fad13f6f03815901a94cfcb1c2f6a8a63f4dd6f021c7f1. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/QZL382237450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5db7e60c8fffb98bcee6d6b04da0c9aa08aef6b8d72ba5554da061e5780a9c2. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/QZMEV2266112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e50bd76174df40ce790f60eab04ee5d912593150806824a24faeeb92830d0e. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZNB82278741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07dd6fdad54a5d53d0aeca96ef7c2a04910011250c33e376d761a90a2c81946. 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/TCAIN2411774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc612484a8be54ef6fbd4401bcc54ad2cc882492155ae8300d7117dd4cd46ad3e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAJF2563322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8c5fc20a08008aca2632d9b0462d543cbde37c0fb9a50350182454c82a6002. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAJU2516560.