, known professionally as , is a Japanese singer, record producer, and songwriter. He was the lead singer of the rock band Sharam Q. As a songwriter, Tsunku is the primary producer for Morning Musume
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 0x9a659eda9a5aeb00e1a2def656bad5ec8cbd66871bb674d08a29ec6d7288a1e3. 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/bf3dc62f-8d18-426c-b48c-b5eb428e4d4a.json and https://artists.proofprofile.net/proofs/artist/bf3dc62f-8d18-426c-b48c-b5eb428e4d4a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
クラシカロイド チャイコフスキー ムジーク (挿入歌)
SHALALA 悩んでても解決せん ～くるみ割り人形より～
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 0x0a04875adac95a3bac742b7a89036ef5f984ba5b482c171ee5d2425b211e4f2d. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPG531600870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb504e7bcb67a994f5a2abafea5244d02f23e53660b222dcb53038e98481a88. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/JPG531700900.
クラシカロイド チャイコフスキー ムジーク(挿入歌)
クラシカロイド バッハ ムジーク(挿入歌)
クラシカロイド バッハ ムジーク (挿入歌)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56318ba215f9473413326614ef8583b749658816e5182956119b1aecbdcc6092. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/JPG531600883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3e951d183ac27e373cf83538d8da0c2ff12260da5bbfa9cf0e14c58b65e06f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/JPG531600889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64dc0365e8f2d8ce58b3897eb8f7d4bc5378c2481cb1f2bf36fcddf22db841ac. 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/JPG531700902.
すべては愛から ～ブランデンブルク協奏曲より～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd020ded5608c19cea3d3c399f369a0da9ffbc7178a2f72019a3e777d352592b0. 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/JPG531700904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eae2de8462bb718f599f660c24f15c467c57188be7a5dc42db6fe876bd62e3b. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/JPG531801227.
クラシカロイド バダジェフスカ ムジーク (挿入歌)
嗚呼 えんどれすどりいむ ～乙女の祈りより～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0a3bf48d1e0fd26a6cbcd909767ca3ca9c830140ef9dbe15aaf92ee57f2695. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/JPG531600886.
クラシカロイド バダジェフスカ ムジーク(挿入歌)