Jahmarie Wishart Adams (born March 19, 1993), known professionally as Jazz Cartier, is a Canadian rapper, singer, and songwriter. He is best known for his mixtapes: Marauding in Paradise and Hotel Par
{"copyright_id":"0xac5e9f145cfe511fb3dbe7f4dcca512fe72be4a7fae3773da59e1f108bcfb5a5","name":"Jazz Cartier","registered_at":"2026-06-12T18:30:46Z","symbol":"NIM0336944","token_address":"0x7cbd02a078dfa0afa829f783aec4ad5d09c33c79","type":"artist","uuid":"9fc21558-dcad-4a21-b863-bbb80ba7e06e"}
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 0xac5e9f145cfe511fb3dbe7f4dcca512fe72be4a7fae3773da59e1f108bcfb5a5. 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/9fc21558-dcad-4a21-b863-bbb80ba7e06e.json and https://artists.proofprofile.net/proofs/artist/9fc21558-dcad-4a21-b863-bbb80ba7e06e.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 0xfa97e5a274526a2397adc6eab84c396edad74c003415cdac421a1ff8b7f24019. 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/CAUM71800166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc48b1ced1242d26b3ba595c1209b8e081d53a8059acf42054428e093c752d89c. 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/CAUM71800168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68f4c32a7bd5eebee821f1704cf28d1a202948a2c1517bfb315cbec8398f88f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CAUM71800170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5423f5d214abb92f1abf0a3b7afaedae1f9c8ae62151e3503b7f54200cb0891. 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/CAUM71800172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e228a6a7398cba1809090dd115c8e8eb60a843455ba36066f8b06cb514143d6. 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/CAUM71800174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05fdf852b01f6cc76b6f836326c0fc119f53032534bde860d711e0cb5068d25. 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/CAUM71800054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17479a09b6b67a0e07042bfa7a92916d6d857c0bb93e4a9cf3d3146e352eb28. 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/CAUM71800176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834f8859b160010252713b8cf6f3251f6b3d279e7108133c8def9e9bf04ec7b2. 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/CAUM71800178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa578dff52266882c87b284d4eee1cdf9372dfa836f584832c432306b409c71b. 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/CAUM71800179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb07d0edf601cbb5f2c37ff716b8e134396ffffa0fab4d8ebc1fe5f7c2e5f4ce. 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/CAUM71800181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0404ccbcea5f300e93f850c53abfd06093d66c29a376f54089c6a28b7d6023a. 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/CAUM71800064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c20f6c2ef8e2095bcbc448b544b782655d6405d5373531cfd62fa0dd02462a. 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/CAUM71800121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a475b9adc41a0c259d6bfd585ab203de57ddf3d307b97d4eba46250b61547f. 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/CAUM71800187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35618df28253fb5524ee75ff007eb43e2001290ef969b3bfd64082ced3fe0b45. 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/CAUM71800189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2808a40045477563ab1a091fafde67e69434b047f255affad313f1c92fc4197f. 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/CAUM71600228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8960d52cb9a4ec3ddf305af5af9a53f722a961255d4968b6beb940765c6c5b1. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/CAUM71800185.
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 0xbeefd23148cae6ee03869224ac6a90d06bb2148c53a41b59c92a04d6e74df77f. 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/FR96X2109233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844b847d970843cf7ca8aba708c8cd4b3700786cc5be342252ad47a67b3445dc. 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/QMFME2136557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f8ec72b559bb124b52d660c5620146b56d22d852f83c08cff766ba7b678563. 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/DGA072175652.
Still Up (feat. Phil Ade & Jazz Cartier)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409c8d5d202835eefb8e420cf21f3e79c98d0751a2ed9e7bd1cfbe6c03a10d56. 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/USUYG1192127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844b847d970843cf7ca8aba708c8cd4b3700786cc5be342252ad47a67b3445dc. 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/QMFME2136557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844b847d970843cf7ca8aba708c8cd4b3700786cc5be342252ad47a67b3445dc. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T16:58:08Z), 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/QMFME2136557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e3fd325171340e2e91aaa990e386de493ef96329ebeb72ad8798532c0930f4. 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/USWB11702345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8bb1736de967e0ddd16e617db85cd7b3be3e0ad460cea073b78570529a4d30f. 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/QMB622300416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372cc209b348b555907c74587325b00f598f6eb1f7e60d34c70e26f811259cb6. 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/USA2B2102918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x819490b59039d336f0465378cf67a0a23fd2571d6b546188df99620071bbc7fe. 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/USA2P2230630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x819490b59039d336f0465378cf67a0a23fd2571d6b546188df99620071bbc7fe. 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/USA2P2230630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb9dfd839d3443245e174d625ec3639b3a92032d43496b2a1787ec0748a21e27. 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/QM24S2301780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb9dfd839d3443245e174d625ec3639b3a92032d43496b2a1787ec0748a21e27. 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/QM24S2301780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e5c4b322af81f6b16b6aee9180137c126dbef0341fe2e56ec663ce494b7a09. 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/FRX452124431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2095b5d00002ce5a3d7827c378bf2af3ec455e97bb11d68db2663d50509dc74d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FRX452116579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x728884963464e4a86b0e09d6b753cc21f06d659536c3322dc1f6db14d418579b. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/FRX452124432.