is a Japanese musician and music producer. Nishidera is the singer and main songwriter of the band Nona Reeves, and also acts as a songwriter/composer, arranger, music producer, novelist, writer, MC
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 0xca10230a49dcd4a612678a00a4123e5fa62e6a9475d344a45c0cc6973be77975. Chain 2 (Bitcoin): anchored in block 953614 (2026-06-14T08:40:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/17a6133f-eed5-4489-8844-c7c71346d357.json and https://artists.proofprofile.net/proofs/artist/17a6133f-eed5-4489-8844-c7c71346d357.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 0xf555819e363d9206adcd2806eb222b3db2287e71464a95e70a7d82bb29cf3982. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/JPB622201540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24107ba037727d55e3180f82de617dd111779fd6fa0037972c14a290bfdb99df. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/JPB622201539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf555819e363d9206adcd2806eb222b3db2287e71464a95e70a7d82bb29cf3982. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/JPB622201540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24107ba037727d55e3180f82de617dd111779fd6fa0037972c14a290bfdb99df. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/JPB622201539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09730c1e6251417245e96d87e3f6eab970351000e7e505a1608cec7040b45a36. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/JPB622201966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd62c35091033a41d802eb538d0908f41db99cf0f37ea237d8b591dad4e450b. 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/JPC542504748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb049da412d113b748027a61274bcb593c6a6ff980c7241c2b2ac6dde4bca6a. 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/JPC542504750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f533e84c25c712f5e6dfeb75a0a44c3501a8af53183de6262a07a29b713d5d. 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/JPC542504751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7041560c6af28863ad7e3490ee1deb588c60e5296b05474f92911041525543. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/JPC542504752.
I KNOW I WANNA (feat. Camino the Funk & The Hair Kid)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80eefbb4612f9cbe98e05af77ebab9d96e51ddfbf849e4b5edc39a880d9b7459. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/JPC542504753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a51129308f0ab6fde008c19b495279bd358987809d4eec5f83e84beedf5aee6. 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/JPC542504754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d37d6ac9563a9a3efb712e3efa710cb941b7cea14ea6c7cb2778915c41d01e. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/JPC542504755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1799396a44e310ec08d6bd9f9bd5b1ee0b5dae3a34d0b2244e71866d01cf4b2b. 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/JPC542504756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d921767c984ac4fee63a6ee62d6562fd11d65325fe0702e171dc9acc5bbf3d. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/JPC542504757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe60782cb57c2b8f3420b6bd490e9aa33f3572a981ffa09b5474c2b84f13bcabd. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/JPU902301529.