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 0xe5a87ba55cfa98e398357629356fd40f05cf648d49270cffee964b6534c42208. 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/6a800b5d-53a9-4350-9f2c-9913d80c2bad.json and https://artists.proofprofile.net/proofs/artist/6a800b5d-53a9-4350-9f2c-9913d80c2bad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
TVアニメ『ウマ娘 プリティーダービー』ANIMATION DERBY 04 Original Soundtrack (2021 Remastered Version)
Innocence, Fight Against False Charges Original Soundtrack (Innocence Enzai Bengoshi Original Soundtrack)
日本テレビ系土曜ドラマ「イノセンス冤罪弁護士」オリジナル・サウンドトラック
TVアニメ『ウマ娘 プリティーダービー』ANIMATION DERBY Season 2 vol.3 Original Sound Track
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 0xde839c67a7408162bc056cf1c813107277eb37edf8878c6d68b8c3ab88e5c412. 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/JPI102100642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x320875fea4e27be2c568e28f6535fb7082133177dda21b83c3a869747e7030c1. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/JPI102100645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70eda08b79d60bcb173011b07ad9d68120faa1907784b5a7c44700fb4a90f4e4. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/JPI102100646.
TVアニメ『ウマ娘 プリティーダービー Season 2』ANIMATION DERBY Season 2 (vol.3 Original Sound Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e6cf960769efd43001c289fd2dacdefc4d7f27864e855348efa14802e3b013. 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/JPI102100643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8d1671838a93ac54d75206dda75e86143a745f0be6985007a1ef0b4470a28f. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:43:53Z), 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/JPI102100644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca484d121beaae20ce6fc8662b05599631f8992ddf45fe53dba9f95ff25d37fc. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/JPI102101977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d5bc82acc2438914a20ae3f2f0731bb9a3c9a83452792d542a12f5c2ab44fc. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/JPI102101996.
TVアニメ『ウマ娘 プリティーダービー』ANIMATION DERBY Season 3 vol.3 Original Sound Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739b0766ca6840388611fb1eb35d68c8587aea1d715f991844f3c98f1c26eaad. 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/JPI102203279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e68e234307e78c8aee77aeec91fd1cf445e9b05a2901cea05631f68363d71a5. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/JPI102302454.
TVアニメ『ウマ娘 プリティーダービー Season 3』ANIMATION DERBY Season 3 vol.3 Original Sound Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e68e234307e78c8aee77aeec91fd1cf445e9b05a2901cea05631f68363d71a5. 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/JPI102302454.