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 0xd35f007b5a7228f2648b69724be3a775eaec5c446afb6f18af27f5dc2da83a98. 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/652cfc16-a0ed-4e82-bd26-3d9c0409c60c.json and https://artists.proofprofile.net/proofs/artist/652cfc16-a0ed-4e82-bd26-3d9c0409c60c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
「Go!プリンセスプリキュア」主題歌【通常盤】OP:Miracle Go!プリンセスプリキュア/ED:ドリーミング☆プリンセスプリキュア
"「Go!プリンセスプリキュア《後期エンディングテーマ【通常盤】ED:夢は未来への道/挿入歌:プリンセスの条件"
Go! プリンセスプリキュア オリジナル・サウンドトラック2 プリキュア・サウンド・ブレイズ!!
魔法つかいプリキュア オリジナル・サウンドトラック1 プリキュア・ミラクル・サウンド!!
WINくる！プリキュアミラクルユニバース☆
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 → 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 0x79daada57b142740e0e8ae188f69dd436ddc786305f3077be653167f6ce9f9f2. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/JPD601900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeec97e5a48f6d85a952d88b34d0b62ce8f04ba6519ad3757239401c151efabb. 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/JPD601700051.
「トロピカル～ジュ！プリキュア」後期エンディング主題歌（TVサイズ）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc605823a7bc8b20f2a90a09d51243f248663ad74e9364f468ee6c51875637afb. 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/JPD602100074.
「魔法つかいプリキュア！！～MIRAI DAYS～」オープニング主題歌シングル(TVサイズ)
ヒーリングっど♥プリキュア Touch!!(TVサイズ)
ヒーリングっど♥プリキュア オリジナル・サウンドトラック1 プリキュア・サウンド・ガーデン!!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ee53ca029b0537e850ddfebab28d9f04acd20757fc2a3cf20b49491af615f1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPD601900321.
キラリ☆彡スター☆トゥインクルプリキュア（ＴＶサイズ）
スター☆トゥインクルプリキュア オリジナル・サウンドトラック2 プリキュア・サウンド・イマジネーション！！
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cdac7f9489b48c75159a34432df8130df35d0b5bf5e5d0bfb7e00f18bf71289. 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/JPD601900001.
ヒーリングっど♥プリキュア 主題歌シングル 【通常盤】
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2286336a3b8960ff005051d5be3c05d767a5cafdbb3ee56cdd5598579256c366. 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/JPD601900323.
『わんだふるぷりきゅあ！』ボーカルアルバム ～We are わんだふる！！！！～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00081abdc4953bef00d086273439e29ca07409599ab80ff1b7e61336b03af2ff. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPD602400279.
キラリ☆彡スター☆トゥインクルプリキュア
「スター☆トゥインクルプリキュア」主題歌シングル【通常盤】OP：キラリ☆彡スター☆トゥインクルプリキュア／ED：パぺピプ☆ロマンチック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70365a7658a7f77f5481a1e7835694ce023074866667141297f092e4966ca193. 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/JPD601900012.
キラリ☆彡スター☆トゥインクルプリキュア - （オリジナル・カラオケ）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6df6d50ce89dfe69f3a9e84ef2989746a5ebb926092e012dc6ac9aeee51b76. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/JPD601900016.
わんだふるぷりきゅあ！ざ・むーびー！
『わんだふるぷりきゅあ！ざ・むーびー！ ドキドキ♡ゲームの世界で大冒険！』主題歌シングル【通常盤】
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4809d12e8fd828c45f753648b7fbd8fc008225185e6c0d275cb617eefd012e7b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPD602400373.
大好きのキズナ(オリジナル・カラオケ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c855d05533397febf02e1e10409e709013de0cf84db92a20f4f256d2788b4f. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/JPD602400377.
『ひろがるスカイ！プリキュア』ボーカルアルバム ～FLY TOGETHER!!!!!～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc716ace2b9adf7ce46bbaaaea18c9eb02268cbc147dccd124f96ba15930c80b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPD602301451.
『ひろがるスカイ！プリキュア』 ボーカルベスト ～KIZUNA◇ダイアモンド～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc716ace2b9adf7ce46bbaaaea18c9eb02268cbc147dccd124f96ba15930c80b. 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/JPD602301451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a09100a2c9b570cda3112c18c7f3d9a1dfae6a897f329f1dffa2f4400277d93. 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/JPD602301910.
『映画プリキュアオールスターズF』オリジナル・サウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61bed356e9771df85e096e8f181b57e7bbcd804617ff2a8f1b3349d45e670715. 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/JPD602301518.
トロピカル～ジュ！プリキュア 後期主題歌シングル 【通常盤】
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f5697cf5d0ff2bb17fa92dbc0dfbaf5908cda5d2d4365e7c010a58599b4310. 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/JPD602100075.
『わんだふるぷりきゅあ！ざ・むーびー！ ドキドキ♡ゲームの世界で大冒険！』オリジナル・サウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd51cf6a6c8a1e16e195fe85be6440bbee70d00587319d7741728fe76afda18f3. 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/JPD602400406.