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 0xa2f9f18df9b74e6b9578f30f229b450578601545048a8051d412c869a29d2a5a. 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/9b8fcd72-3e69-4d66-ac15-f815c24f249d.json and https://artists.proofprofile.net/proofs/artist/9b8fcd72-3e69-4d66-ac15-f815c24f249d.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 0x17336fa536d0052d8edf2e9679b3d56ab844468b0e1634704b73b14687448fb8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCABN1375692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6478b8cfa47f2966c3bf69c32d388ae353ae368a6d9c80d16bc2647ef64e779. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/TCABN1375698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf9ab72ad5be011d997a0a833564a6d0c032617f517ebf889b0722fc15a4253. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/TCABN1375715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46dec720b921f196c6766077d7715306c19018337a7b5e336abd45dc53d2e2e3. 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/TCABN1375716.
Cuban Connection (feat. Uncle Murda & Styles P)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd21d1ef644bdd168a88200e457c48ab2e1621f9a1f8f444f511cbc0a365ca0af. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCABN1382940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee936a0c161bcd06e65a6cf90a5c0789186468953ba2682c117e550a2bc6951. 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/TCABN1374342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45bba04f70ded491b4aaea24b4f6dc0f80e22c2bcff036b6e632daab013870ec. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCABN1374343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a7f5bc9f7830a1cd35e37018e7eb5bd152116f75991ebd25d1909e0aeb132d. 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/TCABN1374344.
Illuminati (feat. Byrdgangshoota & Cef Allah)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67904c6f81ad7fd42d42795e79cf6d9556ee55dd8b5d113c701af1aab4b7cae. 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/TCABN1374345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd63c57fa9e2a01bfd143ae40ffb4fc8f6e9cd745f2ed2071286fee5d9dac2ee. 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/TCABN1374349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb284781fb0f9ba842efea58265149495fd241bb06aa910e418941796724e50. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCABN1374351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x173079c0895baab56ac50f196e4104606252354c7b7b49de6c3eff0fcaccf08c. 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/TCABN1374362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc8f69bb9cba313071fb43f469cfea506ba2daeeeabb6f7aea1a21c6a9782ef0. 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/TCABN1374370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b86626ee02d30c826f138a4bc751bb943f51a82146433be81648d5d93b8f3a0. 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/TCABN1374372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b9452e22258dbdde08c1038d6c34eff1f9c3b81134c54b0502c21328288567. 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/TCABN1374376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc255c7ac2cf64bb49d903d1d0a47a68a904c20b46cbbd836ef6a55daf64ad7. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/TCABN1374346.
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
Same Shit Different Day (feat. Bigfacehead & Gotti Gator)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1561020b7022f4c7302e4fc1f4fc69e66175b87ecd699816d529c75bb6eb38a. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/TCABN1374348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcaffd1a81bf07cbb543f7e21b7de634981d2accf3b41333bc29ed96a014cc17. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/TCABN1374350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f04092c9e1492bdb08c3e23c0680181c33649ccf73e100ba7937bcf600a454. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/TCABN1374365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4e7765357e8576dc6ad72f3f608e2795f826f2c596cb5fab1edddffdfedb08. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/TCABN1374366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6764ed23040114f255111a1cc62286e9a2456d74f46ee365474775c40e7b0e4. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/TCABN1374368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a007fd42bf8528fc8e881d061135d6fc31a0ba9521c13cd8a6e554a566f30b. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/TCABN1374378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83837044fa9206eafad3a7b3c7dded240f6d93f4c5f5ac6898fa36220cdf152f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZHN81961451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe637947d152e94294334cfbe10a2576aa1f776bd56756714b8e2b161b43d769c. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZHNC1934287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc071bc8c41e5f79bfa2664e3d9db1a9de66bfa92104c7b4e260793a8588771b. 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/US6YF2300155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e2968e14ecbf0fa2a961f3b7c8ef363e9163e9e1030d5146b26172ac6aad7b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CA5KR2013077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa16e7cbe340509bcf06c0003dce5892269d35ccd554605af6eb29db5e5da1c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USI4R1043024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5368da5c59638f6595256a9d69522044bdaf49be7d832335a0408c11dc305d4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USI4R1042912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9df74ad56bf0c6b83f1348a5ccb8e04325b7c6c7437069afa74fdc7ebc7495e4. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/US6YF2300154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea315e41c4c7c3a468087be50c254442f031cc3f92042b9cb6996745b1ab582. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/DEZC62146162.