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 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 0x44d24fe70c01d205effcec735dde297556592bcc5715567b55e17e9b58eaea16. 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/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 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 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 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 0x0f81a728c55378b88e457e628db72d91f8c869888c0823eab855e8d2d4ee21a8. 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/JPZ921305449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6345d59a8d11924bc291a4f06126ceb7944f1fd7a3448c0ecf9a9d5fc0c43bfa. 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/JPZ921308205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9572e0ee6db84a3f14f0b0d9f0d4724cae1da2191cdd09cbca2a667bdb1e52. 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/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 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 0x46b510c91ddbfc5116f032c93a18f7412ee7b4613c5344ac20e19e9486e0a047. 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/TCJPE1631173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe401610adbc937ddf4f596197ae75e1f3343b6fadcdc50ac72528948b1b4e28. 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/JPZ920701633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846f7c6038cd27d82334e08bf53818765c188ad61f100ad115f3505b5f5cd20a. 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/JPZ920701634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888f78acc862d1d66c498ee8e9f44fccea9adb904b70b1a2575094b44fa6ae7c. 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/JPZ920701639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c1c3f1441c827b798b01ada6d2f8271541d8926afe16f882addb3399811ae4. 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/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 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 0xd47c4d5ae5919a007d078af0e9817812f34628fdf0054c54b768ddf66ec1aae7. 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/JPZ920500226.
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 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/JPB602401801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f1f7d4c1c31198b9224ef01574042bcbaabac3dad964d1eb717401b140d902. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:47:13Z), 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/JPZ922211568.
KEEP MOVING (feat. Baby Kiy, YAY & DJ 2HIGH)