Def Tech is a Japanese pop band signed to 2VOX Ltd, an independent label. Career Jesse, the vocalist from Rize, named the band, the members of which did their own songwriting, arranging, and producti
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 0x44d24fe70c01d205effcec735dde297556592bcc5715567b55e17e9b58eaea16. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d10c77d6-cb60-4ced-8e37-27acadc925f8.json and https://artists.proofprofile.net/proofs/artist/d10c77d6-cb60-4ced-8e37-27acadc925f8.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 0xd45992516decbb29b39012e336a703137d5413355dbc420ed79aac1691b987f9. 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/JPZ920500223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bcd1ee3a1a82d44be4992ad9761b383bd4079ce96c62b27ff229c45cbb9be46. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/TCJPQ2153619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e66092ac993abe9f4f1cf8563fe8493e1a513c3ef44df85769ea9f38e88fa5f. 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/JPZ921012195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e0cc59aa54c247a6496a9cb95b498e0e97456745a1f7b9eb566b4bdc056630. 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/JPZ922009694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29a71e5b296c3d5cfb0e4979671de21067bb07305041097711d82ae11c9947c. 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/JPZ921607180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7d168b36a746e31429bdd0911c35967059bc660cb4b79925f6097247a6bc5f. 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/JPZ921607179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4dcc6a66af698954e5738518fcee45d49d7069be7474faf22a7874a1d402c6f. 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/JPZ922011590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e0cc59aa54c247a6496a9cb95b498e0e97456745a1f7b9eb566b4bdc056630. 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/JPZ922009694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7741e7010591e36c7e7866dd3efc6b55aeeaf32090d15e17fad92e94d7af83f4. 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/JPZ922011594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607f8a00cacf0014540ccd970adad2dd04639b8160fa19f5111df092bc33ccaa. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPZ922011597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7d168b36a746e31429bdd0911c35967059bc660cb4b79925f6097247a6bc5f. 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/JPZ921607179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29a71e5b296c3d5cfb0e4979671de21067bb07305041097711d82ae11c9947c. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/JPZ921607180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2879998241006507b705cb466bc61e472b2d6dc724a5d3a21c86dcc4b712a623. 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/JPZ921505315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868c10719832a8a8c35612e889d6aab6e82c94b127e4bab2a02dc5deee10ca75. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/JPZ921306023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f81a728c55378b88e457e628db72d91f8c869888c0823eab855e8d2d4ee21a8. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/JPZ921305449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b5915e78ba4e6bf40b014538eddffda67442b9c4e7fd0c6bb3f7415a1cf9fb. 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/JPZ921306026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6bcb34fc9ef739eadcd53baf511a9681622f5ae66104498aba94567da0e196. 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/JPZ921306029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6345d59a8d11924bc291a4f06126ceb7944f1fd7a3448c0ecf9a9d5fc0c43bfa. 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/JPZ921308205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9572e0ee6db84a3f14f0b0d9f0d4724cae1da2191cdd09cbca2a667bdb1e52. 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/JPZ921108338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd571a63e21e30b012b9e6984eb5f5caee4102c3ba141cb61e9f96c0a2292df58. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T15:34:06Z), 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/JPZ921108339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b510c91ddbfc5116f032c93a18f7412ee7b4613c5344ac20e19e9486e0a047. 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/TCJPE1631173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e66092ac993abe9f4f1cf8563fe8493e1a513c3ef44df85769ea9f38e88fa5f. 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/JPZ921012195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd009a0c6d81dae98c053f3d6dde82822cd165ce3ce0234f987543604086a92dc. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/JPZ921012192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe401610adbc937ddf4f596197ae75e1f3343b6fadcdc50ac72528948b1b4e28. 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/JPZ920701633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6b989d93a1cbc942c3ee733303a91a20cc51a1e7f3395ad057f2fcddd0152f. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-21T16:15:17Z), 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/JPZ920500234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846f7c6038cd27d82334e08bf53818765c188ad61f100ad115f3505b5f5cd20a. 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/JPZ920701634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888f78acc862d1d66c498ee8e9f44fccea9adb904b70b1a2575094b44fa6ae7c. 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/JPZ920701639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8a85a55b69dc74b92bfc778561e598c13eec83d4905595cb01aafe559454b3. 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/JPZ920701641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa900e435f17aacba1e253fb56cc5e7b744ce3fc3c8e1362d7f16a9380e5b11cf. 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/JPZ920701642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c1c3f1441c827b798b01ada6d2f8271541d8926afe16f882addb3399811ae4. 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/JPZ920500220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2605f96e93c0931e4f57016a43c0ab0ed4aa2193da1eeac140a8eb61e49f6bbc. 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/JPZ920500221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd45992516decbb29b39012e336a703137d5413355dbc420ed79aac1691b987f9. 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/JPZ920500223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47c4d5ae5919a007d078af0e9817812f34628fdf0054c54b768ddf66ec1aae7. 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/JPZ920500226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb938ff946d137a99501147a56d27cf5b8eebfc2970325b7f098a8e63d4d030c. 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/JPZ920500227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53bed1028ec84978bce49b0090e5c352363a8d0c31c2cef7f3b6be4de43b4cbb. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/JPZ920500224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0330c1650c089c4316bcb7d7df58b243841b231ded8c75c3bde680eccae8c6. 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/JPZ922405503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764152d72fb172df21dd2568781cbd5e2773df5bc0ca2ba7bd02fd13c5f1c733. 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/JPB602401801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604bd698fadf842755ac7857b5b84b9b8074bcc761215b8249877f6aaf58318e. 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/JPZ922308375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e45fce1904f509d64d5b8ae5d875716be2fdbd8737b16d8b44f165ecff59f1. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-21T22:45:38Z), 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/JPZ922305716.
KEEP MOVING (feat. Baby Kiy, YAY & DJ 2HIGH)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d468ed88f7d554acf56c1f77cb5aeb3ba4051cf5e512c853ac2d8148763421. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPZ920500230.