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 0x483d7c0f513714457c7f2232c2f5269df672c35d6ceef2b07fb0723fba9f6215. 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/0dbeb9dd-3d9a-4778-9093-4e4edf5916a8.json and https://artists.proofprofile.net/proofs/artist/0dbeb9dd-3d9a-4778-9093-4e4edf5916a8.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 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 0x23654c10d12d5101edc0723be0a310040b1ed0ae1bc879f42ca346997c32e078. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USCGH1882374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9c2f65938194c5771357eac48ff38a8a5e249cff1364ccb570ee8fe5c168af. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USHM81955652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800ad8c2868108417d0d5305828c9ca8e2c276f81147ac85c03cb59b49790a0a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZFZ72001635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62779c3b3ebca43745dd711a5273e224220e3031cd40ec78c22020d28caaa9e. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/QZDA82010639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e71924a57b68a5ca092193a5690113112715fbb4fc412574753ad21d777c30b. 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/USDY41832673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe6aca40a0e69e119e3ddd17c73b48a783b46cdc2032c983a639a1d0cf7be89. 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/USHM21797873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2c8a5a8af73be59e6696b448ac265e35eb73650016d976afa6c149964e2a99. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/USHM81921185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42685751f6e5c30bc687f7c7a0f19f12f25e5acdec614608fbedc0f6db7aa1d3. 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/QM6P42011948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9c2f65938194c5771357eac48ff38a8a5e249cff1364ccb570ee8fe5c168af. 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/USHM81955652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd25ae5150e06d786dca81ec7e8372ab15f40defb8a3bed7ece86df9960ec802. 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/QZHN82131735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2473a0642cdb335193cc385d47e6d66f66cf0a246dee8900bbe65d94410d8cb. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/QZK6M2114624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd67d7314f349fe72c9657e6cb6368ac54d7cb84d87b5c0130b53ea8786fa63. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZFYZ2271926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46aebacf329a467645ef8e49a4e71fc6041bbfcff476bc9c926a8bc92b010cd4. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZES82247814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0758ce99286ec0c569cfdab718686c8f0ecf18a27c9a771a62867c330d4697e6. 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/QZHNA2271554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ef9c4a979fe20127d97913971278d3cce779a6ed0b9b8e3d29a8ee8058c274. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QZK6J2226834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4640bf9828fab156c2d44b3a9a1b0fc0427e3f19d6ba66caf2dcf153a61e10. 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/QZTAX2229836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8bbaece8057f63e8cc619122da6268bb64c21a34210cfd3bd02cc8d3d971a7. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZTB52213401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd67d7314f349fe72c9657e6cb6368ac54d7cb84d87b5c0130b53ea8786fa63. 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/QZFYZ2271926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b99f61b389be7f6fafefe89d04f649492343a89f60eb8d612371d77eeb64cf. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZDA52298753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27767b5584d33cf06cdc30b1310b447fdb2ec6285f3f6603652e42922904aea. 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/QZFZ62226244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46aebacf329a467645ef8e49a4e71fc6041bbfcff476bc9c926a8bc92b010cd4. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZES82247814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307bd1419c17bbb3c153db96e9081a68f8b215e6982356d7f69d7bf927883106. 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/QZTB52213403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa64a2e9e831c430e6b10379ae991db203e8acaf4e6fc495b92ea888c95999b2e. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/QZDA82261892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02bbe69c0b9b0e4f0b7bc32d328a2e807df86b4d75366b82dea5a110df4679f3. 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/QZTB52213404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8d06e86969b4c3dc30bf5ff8a50dcd2bab0d10f2ed14bfb3f3f75d78b25e12. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZTB32240466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d00b41f45a4f72fc1464a985cfe9038434a0a5354648e465bcbea27daf7a089. 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/QZFZ22462551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15b5abcefa2442efb4fec581c8d40a25dee534386b243183e4c536461c878b5. 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/QZHN62499828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da096d69b276c76e69cca342796b7d3f90458560a4daca423c095919d03315b. 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/QZK6H2480937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f2d7c8c4fb3762a9e8439d5bfe373b17d8ec038e3e2e3a941bea914037ff07. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/QZWFJ2482120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7cc823bd6c5f7faf6b2a460187cd49d37e17179eabb699a9f7f7defa9ff4f48. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZNWY2231011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03b81fab82259fb7cbe362e3db7fee6de617380a42c6454f2c1a699cea1a4e9. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZHN32559620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7cc823bd6c5f7faf6b2a460187cd49d37e17179eabb699a9f7f7defa9ff4f48. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZNWY2231011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x652fa13a7b76cd323f483170ecea0bf9906f1065a58a51881b367bd716c2462c. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QZNWS2521966.
Real Ones Remix (feat. Louie Tha Profit, Nachaash G & Michael Minelli)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5dd5c413fe1694244b0d69ac10b3980eeca1ea161d2e7203cf1291e7a402619. 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/QZLBC2306722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84799339363be15e64b4bb2f9685feefc86c1bd682208eea5c3e38fe35d1642b. 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/GX8KD2469397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc3f90b760203d5219ffc012243b8450b6c3844648b76f1f7d20fbbbe7e7ca4. 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/QZK6P2186913.