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 0x07388e7ddca6639456433b7f6e6579f21f5e96fbc75e57e023ff1a02175b03de. 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/1d26b9b3-f9b3-4a5e-874a-ef32e65a5d29.json and https://artists.proofprofile.net/proofs/artist/1d26b9b3-f9b3-4a5e-874a-ef32e65a5d29.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 0xf541658908c267c4558fae24caf9a65ecb6c923a2e4016d1d6cc6fc1f7111ba3. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USHM91796257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x987f403dcbdb221c662dd8971c17701b10265d75bacc23fd65e6d7640d5e1af7. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USHM21805511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27aad9964fec1b3a08421b6ad7e4a6866cf6bb40f1d342b06bfa485f039f7263. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/USHM21805522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f41b20845bb6d4086ed81c1a6ea863faa5c9991002307e753716878bd000648. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/USDY42096782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56bbcc972472db0c16eae57eb3626ec2744fbc2ae3db760c1bf39b96e951643. 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/QZNN32192973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6384d5a0519d1ffdab87da05699c55f8549a1f4d87f64266cb3bb1a1e52a1a3c. 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/QZNMT2185634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x417039484f335208ce0352046550c49ecee9d3026382183fa2259632ccab4abe. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/QZNMZ2123137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ac5ddccd9de80edf7f04dbdff5d8366120b960e89fa468f53de2f0a5b7a1bf. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZPLR2283493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2b1db946468bb41a60a768f4b5f0872e08efdd73951b04f61d5b5c3f33a184. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZTAY2231203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a5b11937ccdc64ee4af91229491646082c68075ac1ba8b61dc5848183f7027. 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/QZFYX2301107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc44d54f5595ecb5a5cd11ef2673a7d633034c0523b1058ebf68ca833752cae0. 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/QZES62307731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75a71d171f277c47e36e8e5e10b4fb75213c7ab83d6b31b4710f9aeca8bc9f7. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/QZNWW2389138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c73df621b38d42bfe2990ea6d0b9b2c6fc92db7ee64e6e27494986c6c35772a. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/QZHNB2477413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5d2a81d8227ad49ac23e4cf7a911a6cb2317237eaf4478601f98db74712377. 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/QZMEP2402172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4d720f564c4cd5f3d5ba1866040043ead9ba943b7c82bad60951fbb3dbca33. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/QZNMT2423503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5908f328726494b1f9f00cbf53ffa743771a9a8e9eec86c8e8248c8a8a688a29. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/QZNMT2423505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece07c144dbab2ebe44bc6afe5c4daf6694af248f4eee5f16cf78e1fb3bd5534. 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/QZNMT2423506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c8e8385e7126349abc3459b0dca00383d7ce846de6ac6c4cc0bc7d4e31d2b6b. 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/QZNMT2423508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4892c059533e6eae9f32bbe1ae53ad72c19846aebd7d3c82c51b17c3db9058. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QZNMT2423509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dfa9499a333efc4d5adf8f48bc40822abe177f82f059db86103894ae90e882d. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZK6N2405234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62cf5da3aa80b17d4c8830c99d70e423a9d4944d2d1d8cc5eddf355b3ab069ec. 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/QZTB62404814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ce273e877ff4735bc7eb007c268097fa43b4462b4c2b11db4478561c52a09c. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/QZZ7L2409339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2731fead2b1fa23189db3d80cef83ea933edafc4032c5f1391054801df1d45ee. 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/QZZ7T2410094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x205cdaec037a327e3e5dc102c40cbef1accf619865d85fe99d635690d4683b85. 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/QZZ7S2445940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69daf343b284a344fc243178f1e87b602df5777d75dd5c201041f1dff6e43053. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QT3F22446280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6833370e95cbd76723d7c9eb289b574a72a90c9485db3457d9b9a5364cb7f3. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QT3F42422215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ed99c11828bb2ac7db07944def1da0bf00f1ad2ae60a5631ae61de07ec80c4. 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/QT3F32499480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7387f752f7ea3696b8c12c7564c8e851750d7a27ca3c09fcd22cd08f48e1e081. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/QT3FH2566285.
Gulf Coast State of Mind (feat. Gringo the MC)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd81566a25afb97756ec16bca8dfa5cc1e359d74e09156b8d4aeddb4e29744c2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USUYG1463388.
Smoke Big or Go Home (feat. Gringo The MC)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd2bc9af5a56c7c685c43bb308a9f081a77cda81e7f9a534bfa70cf6d70904e. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USUYG1433378.
Juana Marijuana (feat. Gringo the MC & Tino Cochino) - Remix
Juana Marijuana (Remix) [feat. Gringo the MC & Tino Cochino]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe49deac7aa4de814d0c94e52bedb830e91324ee63b2dc3f8424447d6eecfda49. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/USUYG1476314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c8d7bd0bb44e3e45fedddad3ab995b5b10c767d9262a89165ea33f24305601a. 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/QZK6K2581399.