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 0x561c11d11f2056c881f5fcfa2b6f61b1d67e2c1150b406f6a3c68b28ccb0be25. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3948fa97-fede-4122-9419-28b98de03279.json and https://artists.proofprofile.net/proofs/artist/3948fa97-fede-4122-9419-28b98de03279.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
TV Anime "Giji-Harem" Original Soundtrack
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 0x4ca6c0e7468701b1ed8df0cda5ab21f2ad4d68750ec1413e7c82711d47ae85d2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPPC02411637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68dbf50c393babdc258430717efdce3c976e397764034bd99f7c9dc8495f08f3. 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/JPPC02411640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77181458f1031698a7ff3ff67dfa5006a54aff808e6d6c6d06648b911fbb2401. 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/JPPC02411646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb805629c278198069b271cd66c1a31318cd4f24e848040d05b1692a195a6c46. 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/JPPC02411647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4996180bf26123161721838500eb774839d68f9946a4f5de8e90d695abb4d101. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPPC02411667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a80e6c80512423c4aa227fb0bc8af9bfd67f07e5b5910e90ac1db6ce2aae292. 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/JPPC02411669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74aa4efd006b936a7be1492d7e3f513d5247f24fb5ec9f6cdac18ce37a3f3cc5. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/JPPC02411671.
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 0x4037180c89b9f617d4e322674d9f787f5cf8704eaa94306e68eee16585d170f0. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/JPPC02411638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a4bb22092f582a19262fec924e7d9ccfd3c4769ec14915b68c2ad179e29fa4. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/JPPC02411639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc3cda4fe10c85169b8871eed2f2962d9425ad797196ad0b7ed50b7923f00b1. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/JPPC02411641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5234bbf61289c7df948c13fdeb08f610651e7d286f6b55468efbcd4a2da9967d. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/JPPC02411648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983dc1daed55d4321aac1b57012dc8f7601523334da55d3175a2f0f73e04aa9e. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/JPPC02411651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d9beed33754f029cc3a223580c0f383c892d62792b4914ea52c57f039cfee9. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/JPPC02411664.
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！！
スターカラーペンダント！カラーチャージ！（キュアコスモ・ヴァージョン）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95467670f5971d5c46d6f001fe6f40fb74dee38fa0a63895706521dbc1f70b08. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/JPD601900274.
キラリ☆彡スター☆トゥインクルプリキュア（ＴＶサイズ）
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.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9f065aa3fe5ceb5be3216e2d5e23bf98f1ec7b2ea26c73f6fd298817029243. 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/JPD601900276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6440bb5f56266960fce5d9d3b5b83c69ad137e0c99c23b6da517df63efc9ad3. 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/JPD601900033.
この胸に星は輝く（ピアノ・ソロ・ヴァージョン）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa413fa7bdb12bd00304c7dd7584de4002d410166c2aba34410f2ce9050f4d104. 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/JPD601900291.
トゥインクル・イマジネーション
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59600eeb97fb213bf7080881eca237da0fba3d97587dff9322e4169e0640b574. 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/JPD601900292.
スターカラーペンダント！カラーチャージ！（クインテット・ヴァージョン）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b3bd0bc5fff4f6555ad38e864afc4cfb5791a4e6847f2bc5a2a3746e2b3fb9. 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/JPD601900290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3089a064d7319647823024697ade636daa58bdaf1a0905fa942b7409c8c7af1d. 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/JPD601900302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5fa83ef6c82ca4c1640ed0f98e9821d05d9cb4be5338db0ccd2a89a1a2bd01c. 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/JPD601900108.
[Nogizaka Haruka no Himitsu Purezza] (A la carte3)
[Nogizaka Haruka no Himitsu Purezza] - A la carte2
[Nogizaka Haruka no Himitsu Purezza] - A la carte1