1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x12155bd0db34b955285dedcfd8e53f6004dae75d670e0abf7ecdf2db8188d4ed. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/57718d49-6db9-4d65-bdde-8e715643007b.json and https://artists.proofprofile.net/proofs/artist/57718d49-6db9-4d65-bdde-8e715643007b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ダンスはじめました。～子どもも大人もやってみよう!基礎からわかるHip Hop!～
ダンスたのしくなりました。～子どもも大人もやってみよう!基礎からフォーメーションダンスまで!～
エブリモーニング～『天国と地獄』より
だ・る・ま・さんがおどった!～ケロポンズとりゅうぞうのあそびダンス～
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 → block OTSBitcoinBlock must exist at that height 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 0x01a14072d97d171b019222c214388e8db61c0fc88e5b43606fb52baa04d36ba4. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPKI01514465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659c1a6c1c4f982ce5f76e6609dc0680ba9ff0399864e35f9ad01540fe26a361. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPKI01314158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbbc6f7e9ccf9ed87efea64cc0256fea62e4e8829f0d91b91f7811ee89795ead. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPKI01610200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2d503099746bcff2f9397f06ea054aa9eced9d7ac8000d00e870f17e8e01a7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPKI01510391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb348db5da18c672fb0bd6e76c93d9ed9734b89ec7cd4ceae2b01e320d155883. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPKI01015374.
ハッピー・バースデー・トゥー・ユー
保育まるごと夏ミュージック～海/太陽/海/食べ物/キャンプ
うみのうんどうかい～イカ・タコつり合戦～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8424255936acdeb929e05d73be436215ddce2db6ebd23f67e5fe25efbd3f2e1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPKI02312377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90104300895f0be4e289b1ae2cb3bbc58200d61be5e35b24fc1f0d1c3b2f6113. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPKI01010594.
ミンミンゼミ/アブラゼミ/ヒグラシ/ツクツクボウシ/クマゼミ/蝉しぐれ
日本サウンド・エフェクト研究会
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca4ac36eb4422efdb75b98fb2d174a4f01d008407c1e0345e82b69bb8ff36df. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JPKI01612813.
Oh!スージー~簡単リアレンジバージョン~