Azu (born December 8, 1981) is a Japanese R&B singer. She is well known for her collaborations with rapper Seamo, such as her first major release, the leading track from Seamo's second album Live Goes
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 0x1fbaf6c18d4e9c56dfab1181223299dccdae4029c81a8195f382acad3e69bc26. 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/84d0988c-b899-4bc1-9218-18793f70db60.json and https://artists.proofprofile.net/proofs/artist/84d0988c-b899-4bc1-9218-18793f70db60.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 0x1533c7ed6449c4e792c902f09f3bd30e7804b0c04c8ac6b58a1603ed2ca5034b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCJPS2239009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x545d68450ed2e67632e194b9de7e2b4a7079d70cc3633dafdbe83f92185c5239. 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/JPBV00800154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155a28ea1f8cce746925ccc69dc85e275c2dd1c28c840adc7f44a4eb18e9b765. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:43:27Z), 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/JPBV00800156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ace5bd00a705e97b84f29bcc1a9064b14ca304769522add3349f72cda1e505. 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/JPBV00700970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x676cf2e4f1887005bb29f56df5212e6c644dce63866878f6128b4b0ccb2fa047. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/JPBV00920140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52409a766942b172b7f424ee9422c62f7d2a978a26d257c2801fca348bb2ff54. 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/JPBV00800960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c00487d7a65f8d5e6f498e34bd7e0d75f83e9735d51b00aae15c0d773d81c7. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/JPBV01020221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6702c7b30588d29acc51f9c8d835e7de4eb21fbba30d87faa07a7ca263909e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/JPBV01020187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ad8d2decff6dee8c0fcec02559b9c6266fe9bf3bc1083513f6de883af9fc3f. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/JPBV01020189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647046ca804f02e36f163c7cfd129e9ed486daef821027d91251f891092dce61. 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/JPBV01022671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77080f04f7e4fdfd29d7ecb96a4851c9b3873f2a43ae0b4c77ce41054ada516a. 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/JPBV01021951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09598f9f7ea28c09f97acb8f08dae2d07364651e65b1dbc782519f725db4ea45. 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/JPBV01021731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x381ca62190a02701df598b94198b7b3c8deead7d2dbe15d97d59b7649b9d95d1. 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/JPBV01022672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5395f0ac640031c3a33168987bc788593bf17889212890eb24dba69cfc41c451. 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/JPBV01122332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55148597c76ecf4c793067a27dc9ca5534c24914cb66a411e0894469246bb634. 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/JPBV01121981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2f58330b401686df2edeee79d90b93565ede3e34126f339bcd08a6503102f4. 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/JPBV01122340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x555bf1ceab2ed97d111e45ec7c8784cc143e6cb62eb0b096df41349e4a5b7da9. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/JPBV01120781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc28a2ddf677e481d7b708c473d0608386d51daf957834931dc5ff7bae297e3. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPBV01221862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31e5176fe8519a355eea1248b16a7989407a8c737441b88c075e6f2283c3f48. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/JPBV01321001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa383b202225ac376c046eb41eeee7937e941305ba96b386a4275de5658f3e898. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/JPU901402467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc752b17466173218fcf3d715e99e560edeb62659b282bc2f0fef54b30adf247. 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/JPU901402472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x545d68450ed2e67632e194b9de7e2b4a7079d70cc3633dafdbe83f92185c5239. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/JPBV00800154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d05eb86eb360cd253f05571ec702f9a0cb600451c2316acfad357d3e3e8118. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:23:51Z), 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/JPBV00801026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09598f9f7ea28c09f97acb8f08dae2d07364651e65b1dbc782519f725db4ea45. 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/JPBV01021731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77080f04f7e4fdfd29d7ecb96a4851c9b3873f2a43ae0b4c77ce41054ada516a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPBV01021951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ae893928174caf3e13cd5b28ae68b386072624702a71b6cb5fdcef48a69ac8. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:34:06Z), 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/TCJPV2383373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e1fcd5a38b6482cb466299c09050c5d1ed13aa14a85dfbf7a9d69a51c901ce. 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/JPPO01064220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e2f5671a710b0e4ab2cfaf6fd0792d05cb98a851056aac9634eba139398910. 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/JPS651900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a8fee5c2c7fa85d5e8acfd64fee9e6046d2cfa9db66f1ac4eb13e3e86f73da. 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/JPPO00979840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e1fcd5a38b6482cb466299c09050c5d1ed13aa14a85dfbf7a9d69a51c901ce. 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/JPPO01064220.