is a Japanese actress, tarento, singer, and former first generation member of the Japanese idol girl group Nogizaka46. In addition to her work with Nogizaka46, Ikuta has appeared in multiple televisi
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 0xd0c7d85c19b54cb15ec91504f0f0ee00593e09ab8c6d3f6b92eb3cbd819bf466. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a46fefa5-c4bf-4940-abc9-2a1c26574750.json and https://artists.proofprofile.net/proofs/artist/a46fefa5-c4bf-4940-abc9-2a1c26574750.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Welcome To Rosas (From "Wish"/Soundtrack Version)
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 0x51f5fd4c1db8b524dbe6e6ded35c6ccf2a8d7e3fb217762fbd872f09f1ba22ec. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPU902400614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad188c625e4783cf995a78643631c2e7b4b921d241924ff885e670b57986c5d. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/JPU902400978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f5fd4c1db8b524dbe6e6ded35c6ccf2a8d7e3fb217762fbd872f09f1ba22ec. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:57:17Z), 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/JPU902400614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e7aea7bb8d22b0672794ac3e9efdc972f2c5c2e9a3753ab709ad3016058ec8. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/JPU902400981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3a1912e004ba1f8da753876dfe6ba3d02c811091d4006b0ef6d02df265edfc. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JPU902400982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee98a1f86afa33deda15a188231265fef19299d3e93c0b368ac48665f1c1561. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:29:01Z), 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/JPU902400983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5301280e10c5208bdc7006557c19d829b8ac329685dd4a7fd2de96c506c112. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/JPU902500409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591ba0dbe7900ad527861a1028abd252a3c0664e05542b5f384444d50273bfc5. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:25:56Z), 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/JPU902500410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01e4de1c1d821f1b0dbbbbb468391919d9b082f9d59b9f7e517353370dc8b64. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:54:03Z), 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/JPU902500411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3035c6c98379d3f45e94380682d3c4918e5254a9451574fdd5e0bd81cf1deac3. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/JPU902500412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb788f1dc9511b83b5f06b2f9b2a86fae92fe3cc88c278cafcba07e6aa8fa97c. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/JPU902500413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418b20b7bcbb9054579043b00b3b512f9ae86e7779cf25bd5dcc25d5f3d23671. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/JPU902503080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b5a2b9fa8bada8721ed5995528f0a8e44d721cd00753b2ca48788a8546670e. 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/USWD12329266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5033f2a562fadf51aa3c1a38682467fa88ad9a52b8ba3a0b927f9d8c1ca4a8. 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/USWD12329267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a82e1ec91b77d16caf5d3be3134c8d0078c0f09f480ba08b22be2d1f87ba67. 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/USWD12329261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24cc31b2e417b60a4162e2a3974884a56afe19a3029a872df12ef4d5882f254. 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/USWD12329271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d656cd2e311be4f9d66a6cad4f5476dbea70b7ae43b4225b604c07a52bfe4b5. 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/USWD12329272.
At All Costs - From "Wish"/Soundtrack Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5033f2a562fadf51aa3c1a38682467fa88ad9a52b8ba3a0b927f9d8c1ca4a8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USWD12329267.