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 0x1fd57f467221c3cab3326fc6f7beae8635ebd1232c313fbec4f2682e07f4ab35. 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/301fa85c-551d-4f07-9160-05019a2cb8ea.json and https://artists.proofprofile.net/proofs/artist/301fa85c-551d-4f07-9160-05019a2cb8ea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
「プロポーズ大作戦」オリジナル・サウンドトラック
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 0x8869befeb0240b07d8c7267435ac52138d984c6922180668439522bbbbca0228. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JPVI00715400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06e501483cd150dd2d3e7fe33b4d77630d20eb875493ca41771d39251499dc1. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/JPVI00715410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2e3ab19fce5dbbecccda29631dd3e32942ca29ff5a96ea432aa649b51c8b9f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPVI00715420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc972b8e25a17a92609372e3367d98276a1e76823939c6ef36240b2d57a05a656. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/JPVI00715430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5829fb18d30441a732d6db0d00f996f4c8e84027803807d9213b8dd0f7c59359. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/JPVI00715440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f00778cbc9f49f8ed57a99843c489d4114f2ab5872cce14e2b42c8ef559f8af. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/JPVI00715450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe3277f8cb6e2a1289ec6a172e6f396c157f46a32be801c5b6fafe9cfd54de3. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/JPVI00715510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d23902d003d474c658ec110d993d749f4cf9b2d9e147fbb1c535a26bc02be21. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/JPVI00715540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64463485dc94dd25ad58c521e940b920151e99ae9db3758427b4a1e6636f5cd1. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/JPVI00715560.
日本テレビ系火曜ドラマ「探偵学園Q」オリジナル・サウンドトラック
DETECTIVE SCHOOL Q Original Soundtrack (Tantei Gakuen Q Original Soundtrack)
SCRAP TEACHER Original Soundtrack (Scrap Teacher Kyoushi Saisei Original Soundtrack)
日本テレビ系土曜ドラマ「スクラップ・ティーチャー 教師再生 」オリジナル・サウンドトラック
SD GUNDAM SANGOKUDEN Brave Battle Warriors Original Motion Picture Soundtrack
SDガンダム三国伝 Brave Battle Warriors オリジナルサウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53e2b22c21e5da61f9375058ed9f62cd0a84e8d69b6e6cd5c3536b1e4962786. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPI101102581.
MOBILE SUIT GUNDAM AGE Original Motion Picture Soundtrack Vol.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b0d01570a60731edaefe661baa0dff6d33e965bf60d6f99382cbeec32530f0. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/JPI101202539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b68f2d2f1658a63f2fd3cc45f950b2c2e32a01ca15224990df9439de6d934e. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/JPI101202542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190e12534c5410a6b994ccfe5452969a4a59c9d77ff9d15afaa443690c39fd1e. 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/JPI101102231.
MOBILE SUIT GUNDAM AGE Original Motion Picture Soundtrack Vol.4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b0d01570a60731edaefe661baa0dff6d33e965bf60d6f99382cbeec32530f0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/JPI101202539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b68f2d2f1658a63f2fd3cc45f950b2c2e32a01ca15224990df9439de6d934e. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T11:19:23Z), 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/JPI101202542.
フジテレビ系ドラマ「医龍4~Team Medical Dragon~」オリジナルサウンドトラック
フジテレビ系ドラマ「ビター・ブラッド」オリジナルサウンドトラック
TVアニメ『殺し愛』オリジナルサウンドトラック
TVアニメ『マジック・メイカー ～異世界魔法の作り方～』オリジナルサウンドトラック