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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f1f5da6d93bd999244506a741f5ec440e6e3ff71c173d626969dca3a28e988. 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/d7e19c5c-9599-42dd-b2fc-f617df4ee59e.json and https://artists.proofprofile.net/proofs/artist/d7e19c5c-9599-42dd-b2fc-f617df4ee59e.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 0x2db800f38aca05d968220423aa1837add9fff3d2b67b816f75da9dc0ca7d0d22. 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/CH7812400240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85fe0cf96f1c9bd0e5796f91409d0042b3dc85a8a10140ff60a85a83bdd47776. 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/CH7812363153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552386354c1377f1375ab46dc0d9170ce3ff42eb9392da7dad2018a78d634337. 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/CH7812371032.
Icon 5 - Welcome to Malaga (8 Bars Challenge)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2314aec21edcb867ce3a2c4703c72a2afbf24d3b554810660b4fea4211ff2084. 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/CH7812365440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bbf106e7fba30e2957dae169fbaf949c7df41bf1e693606d345139f15c73092. 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/CH7812353804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26c69da68f984a57f11b7a3087143b1cbfbfb8dd1770ac1b3bfb3b673ad82a7. 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/CH7812365784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b75c850acb81940767412663b8afa160ef260229f43f1735a99470ace2c701. 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/CH7812367615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda463e58e311211951d3f9ecaebaece2907a114db2021f0787e10ff6c37e68b3. 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/DEKF22401354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe21645190eaa53f50959b7e51a124f95559295491ed1ee4ac6791e4982e7b16d. 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/CH7812357511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e01d0f534d361f125ee9cbf62e14491c5c6b3d696cdfb67a103759a8a0785e. 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/CH7812370025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x942309f6f0f67df80c984c8949e768af3c7f287c0dd258a0752a8ae6991e41d6. 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/CH7812356426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a54cb9ebd780a8f091dc7c1fffa255eea3468c5f87ed1487a8abc7626c6986d. 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/CH7812368260.
RLR2 - Runde 3 - Tag 5: Wenn Welten kollidieren
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce44c3c2819870c79c3cfe578dc1647a062b62c9c284c94341714cf2e791dd11. 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/DEKF22500057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802f6df35d8e93c68e2ce40931d66c57950635eab4958da91c617ee50155d20a. 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/DEKF22500015.
Monkey D. Ruffy (feat. Azu, Der Yavuz, diyarue & Adem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f52585bc45ae9dc1f29e0776e049bf84d7487ec19832259d8d29cde195cb0b0. 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/DEKF22401821.
Champagne (feat. Azu, Ego, Erda, Chanelle & Aysar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed23e56b45cdaf0dab7b1df2458fa7b004ae004ae3a47abb7f38cac8ed6a0e24. 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/DEKF22401671.
RLR2 - Runde 3 - Tag 7: Jenseits aller Grenzen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99361969f32d3aed41d6a65585570c4973aa41c87392cbe77ef7ac838d276101. 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/DEKF22500142.