is a Japanese singer-songwriter. He is currently working with "Chikyukyoudai" ("World Siblings"). His notable works include SakuraBillboard magazine for February 21, 2004 and the album Hibi Sansan.Bi
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 0xc6109c95c3d5aba63a9ef1cde84a6952763413062f7bb6ebaa61cb2603a3b832. 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/ad119ca3-6294-4138-b3e7-f9613600fbd5.json and https://artists.proofprofile.net/proofs/artist/ad119ca3-6294-4138-b3e7-f9613600fbd5.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 0x449e6a22aaf9215a63b7b8e6f14947de19f3efd1d5b58a9df5ac451d56ae6412. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T16:52:57Z), 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/JPWP00401318.
普通に生きてゆく事は意外と難しい
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f9fa1f5c187abcb87fbcbc24530c9b1d6fc04462af8a74b314f2b982912ea5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-21T08:58:16Z), 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/JPCR00706160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6f4eaaf62cabdf461ad0f0ce72d214998ce9637917205b0b478fb4dcb3e8e1. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/JPCR00706170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b7c794790437da01420ef99d14b8e51efbac233e0ad73e448e64f0a84747f9. 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/JPCR00706200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde35aa7166ab5eb7b529941875c21a98865168e7defbfb77e2516828ecc572f0. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/JPCR00706210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d0985ec14e140a451e2125aa27b637a667f8b6ea159815d4f1e5197e35dda9. 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/JPCR01102970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7ebbcf841189282e7d9af68ff89d0d57673a1d4f7fe6be12111e82ce33d81b. 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/JPCR01102990.
昭和40年男たちのメロディー〜君を好きだったあの頃3〜
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe974fb7ebe0928af900e7bc9e64255386ea1bf5b23a5632d8adbae7f66e688. 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/JPWP01370320.
ジャズの歌 STANDARD SONGS at Billboard Live OSAKA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b7c794790437da01420ef99d14b8e51efbac233e0ad73e448e64f0a84747f9. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/JPCR00706200.
心のふるさと～信越自然郷テーマソング～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859808f6301f62d3dd050700c3ff97cd709a3d1d971b3ecaf9db734a3373f38f. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:35:34Z), 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/JPWP02070061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d5ec6e6fcfc3bcf66ff50fe76d1a93e5a5db9c82a4c9eb4a01d8ce3279dec04. 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/JPCR02102540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62580b042360421602f3786289cc7130540d6aaadd74227cf9dada3f0197f4cc. 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/JPCR00901460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb0dc00c0e4a4d3bfcc5042cdafdbf452f350c7e0789fe4a84bb8f646b0df5d. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/JPN002400342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9286e97285767cd48e0e36e778b533a56df694db21082114c5866a863d7a6c43. 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/JPN002500135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732bb4b8668325a4140cf7f0627c868aa7602a29cd2cb0c787e8b4698ed251a6. 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/JPBV01320723.