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 0x62ec52ba9f21fd2d8aa6d1f17484780715b15b8f77497d0609a746ee69e64b71. 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/9b1e17a3-5097-40fc-bc3e-afca27270821.json and https://artists.proofprofile.net/proofs/artist/9b1e17a3-5097-40fc-bc3e-afca27270821.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Japan Maritime Self-Defense Force Band,Tokyo
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 0x8ef5776e907544a0c7b6f3cf0eee427199ad94630502b4959098187809528b11. 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/JPPO01614153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6e4e290208da8723df0e49b9942c9a9d3cbc424090010735355da174350e22. 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/JPPO01614158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26175293d803332134688f88511e3e0b7aaba8817ea5267fb5dda4e7002bab9. 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/JPPO01500711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2be1a4b957e4f42dec2ec31f12e1afb1daa155e9628b572c6a087a064f4b674. 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/JPPO01500701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf32666d2f1657a1ec05d054b221c1642c9964b3f1b1f2584d0415ce8b7536ea6. 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/JPPO01500703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49056c03927e80d50a7a59122e38e7a2fcda948c314cbd247087dfe2fac2ba45. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:27:41Z), 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/JPPO01500704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11fec9dfb8178f93b6742f401bec2686c0adee8f86729194cc57c72b04d24f89. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/JPPO01500705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c9236c504ef946ef2438dd3e400059e1a8a4eae2fd55c761c1726eb3511981. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPPO01616039.
ウルトラ兄弟メドレー: ウルトラマンの歌
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b49074000533118f76a8bcde042292dbd6c12d29c4d56b10a9a60c75d3bda1. 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/JPPO01614138.
ウルトラ兄弟メドレー: ウルトラセブンの歌
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c8622b5317f5ea7206ac762cb9585d28ed9b2b12715e8ceb007e07b17ebd411. 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/JPPO01614139.
ウルトラ兄弟メドレー: ウルトラマンエース
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99461bd13b8925ba34a7d9b74cdc2ffe2df9b6fd2f9f89c8eeac532a2925d08. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/JPPO01614141.
仮面ライダー・メドレー: レッツゴー!! ライダーキック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24057f70d9fd19dd8c1cc5cbf2f55eba6156808741536d8aa665092b22d1d690. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPPO01614144.
仮面ライダー・メドレー: 戦え！仮面ライダーV3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d133caf6a0ad2889497af6f80b9cff051a527d925a56b68d20f18c77ed3349e. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:30:32Z), 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/JPPO01614145.
仮面ライダー・メドレー: アマゾンライダーここにあり
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84acb00fd8eb65bc075ef88ed78b13b29612b84b168948897e71ecd1e4e064e. 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/JPPO01614146.
ウルトラ兄弟メドレー: 帰ってきたウルトラマン
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a1763a285714b16f5bf7e894c9aef4e64f02e4393c2944f477d770613d70ba. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:27:25Z), 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/JPPO01614140.
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 0x57f228c26a0e394a4bc7c50ce9822031eb68a61bc889a4c8b7d5a8a147ea6b0f. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/JPPO01500702.
劇音楽《ペール・ギュント》: ソルヴェイグの歌
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5915a6665497f7e09fe0062cf36dd82c8598302980529d955dcaed57c444b1c5. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/JPPO01616040.
ウルトラ兄弟メドレー: ウルトラマンタロウ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5322d5d703333ce2d42980f987cd9c5066c001158b2ecbc6082484af21e10a. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/JPPO01614142.
ウルトラ兄弟メドレー: ウルトラマンレオ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202a0de192fee13b051bb3735b3512473477fe6cd15b93bc6eaa5a89065afe46. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/JPPO01614143.
仮面ライダー・メドレー: セタップ！仮面ライダーⅩ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c6b8b0180576390a955775e0d9ec39f8d57728b9a494301ef006f510a5611d. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/JPPO01614147.