Jack Latham is a British electronic music producer and DJ who performs under the alias Jam City. He has been active since 2010 and records on the label Night Slugs. He has released four full-length al
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 0x6913dc5e86744ef6878afe277a0228d0bf5099e4815497b90df6af6252f434a8. 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/68c1a244-c808-4126-9d92-ee9c7159e34a.json and https://artists.proofprofile.net/proofs/artist/68c1a244-c808-4126-9d92-ee9c7159e34a.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 0x35a58358acd887d7abd9c466deca8789fa8987e2fc3d81b59709b17eaaca8025. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/GBQLP1200072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40909821de0d481ac48227ea8767e230ec17f79180d0fdf78667869e3bbb2d0c. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/GBQLP1200074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2acac97ff3b816542a4eaf4929fe4a745cf053cfbb325c9262396b952e7adfe. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T10:49:32Z), 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/GB5P51400065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d156d0ab35eb3dfdb6dc48a9b7e1dcd53f4580738a69003b2672bcceed4dc9. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:50:36Z), 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/GB5P51400067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7567dd09e5b49d430155ab54dbafe0d2c2ced10dc33a091909d44f95b0d9bbfc. 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/GB5P51400069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91900da9466aeac9b44bc927ba47e080e6f00df336fe8735361b3ee18609efd. 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/USLZJ2052941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e3c71dffa0e5d2a2341a1ed15d433734080d16372b776f9d33c088117c3132e. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:47:33Z), 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/USLZJ2052942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022c3665e7b4dc0f66fdb2970dba5388959011d780ef4b8d8b8646eb1eecf1ec. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:52:56Z), 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/USLZJ2052944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ead2f663914d505d3471a63bfd50b1a41177ebea77fa13db810e92bf67d9dc. 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/USLZJ2052948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784a2fdf5e80f1eb43fdd2063b962fcde0138ece3e99c37a4dded7f8e19f563e. 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/USZ4V2300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624736d12bf01ac62f5512b01746f040c9604043cec17c84037a64f8d89a6325. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USZ4V2300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476032626fefedcaa593909056531271f6be7060ebf03ff16ed665e64981dae1. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/USZ4V2300027.
Wild n Sweet (Paul Woolford's Special Request Mix)
Wild n Sweet - Paul Woolford's Special Request Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa613e19b9d370a6309c8ebc236967e47370f332cb56d5bdbc84fa4de332c4765. 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/USZ4V2400062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95b53e1f6ad768400219d948f527ea87068293ad0091841fec6ce829dc0312b. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/USZ4V2400076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa613e19b9d370a6309c8ebc236967e47370f332cb56d5bdbc84fa4de332c4765. 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/USZ4V2400062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c0af68dd22f070f5b07b17aa6d5eb9c2898d340866a19ec7774ddbd9968b54. 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/USZ4V2400077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ebe385195d8c4d064b5e843ed514041b55747c87ddb43f705debf9b6cdc7f3. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USZ4V2400078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f589d18b6e0640d64d9581357255d8f634d55536ffb4c537e14916476f69469. 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/FRS711700500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7666742ee5dc3952e864c235f79072ac7f70ed33e03a83ffd1f59397b8b6e0. 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/USW9S1500060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42599be1051d529e6187810a923e34b1f24faf33a0fe29b95f12b52072bad83e. 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/USMTD1811621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f82adf6b00c5059866c30dc3edb91f41553e0cb0b7ae05959a3bec4df5489e1. 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/ES71G1820957.
Internationally - Prod. Jam City & Dubbel Dutch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b34df4584b9a8be27e714e94d489ec2beefd3d0af568a7b3e687d0876523fce. 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/ES71G1820958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b7cc5f6e60fae50518d8debfdafd8f9a268abed583a443398525d95c756ed3. 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/USQX92305592.