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 0x2c809e5be964cedea121a6919f3c45dbe4daacc823396101acc27a1c0ccddb6b. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6f365aa5-98e1-459c-b143-c9d65acaa899.json and https://artists.proofprofile.net/proofs/artist/6f365aa5-98e1-459c-b143-c9d65acaa899.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ルームシェアの女 オリジナル・サウンドトラック
映画「Sweet Rain 死神の精度」オリジナル・サウンドトラック
Accuracy of Death (Sweet Rain Shinigamino Seido) Original Soundtrack
この世で俺/僕だけ オリジナル サウンドトラック
Huluオリジナルドラマ「CROW'S BLOOD」オリジナル・サウンドトラック
日本テレビ系土曜ドラマ「ボイス 110緊急指令室」 オリジナル・サウンドトラック
Voice Original Soundtrack (Voice 110 Kinkyuu Shireishitsu Original Soundtrack)
VoiceⅡ Original Soundtrack (Voice 2 110 Kinkyuu Shireishitsu Original Soundtrack)
日本テレビ系土曜ドラマ「ボイスⅡ 110緊急指令室」オリジナル・サウンドトラック
かそけきサンカヨウ (オリジナル・サウンドトラック)
恋のいばら (Thorns of Love) Original Soundtrack
日本テレビ系土曜ドラマ「大病院占拠」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 0x743c3bb95e363784c97b2d50e9ca854b6f5f3a3ba10e796608cdf5865225bd45. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/JPVP02303201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6262b2be16d1325c0bf0d7fc3ddaefe1d86f37d6e3c7a1a87f006da365662b19. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPVP02303203.
Captured Hospital Original Soundtrack (Daibyouin Senkyo Original Soundtrack)
日本テレビ系土曜ドラマ「新空港占拠」オリジナル・サウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1acec2868fbc107f836b2dd523358cf5fee5a04c494b6cfc75c24a798260d653. 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/JPVP02400401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbbf9de6c480baa69a3cd3d06e3f0b3dfb63e7f5a2e008a552067f1e7c5d851f. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/JPVP02400402.
Captured Airport Original Soundtrack (Shin Kuukou Senkyo Original Soundtrack)
日本テレビ系土ドラ10「潜入兄妹 特殊詐欺特命捜査官」オリジナル・サウンドトラック
Sibling Intrusion (SENNYŪ KYŌDAI) Original Soundtrack
映画「嗤う蟲」オリジナルサウンドトラック
Welcome to the Village Original Soundtrack
映画「近畿地方のある場所について」オリジナル・サウンドトラック
日本テレビ系土曜ドラマ「放送局占拠」オリジナル・サウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3f2f5e87076e39f3b240be6701abe81379bba32af7b12f8d3f691e6c8d70d1. 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/JPS602502340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6954f03082f39e1a5a633b7fb04059455a6ef18be0fb9b9c7b92b93d3edd70e2. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/JPS602502341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d349debaae981c449d88a64b7a25bc086fb4ecfc92c2a1807c6df4b83916d3. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/JPS602502342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe451d43da79bf6c849c893ec0ade9588db354db34330b5b90926d77433029ca. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/JPS602502343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5999a2250b2f942164fbcecd36fe51b6a0da14dea859adf868071ed6b424e96. 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/JPS602502344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf126aaaceba23d25ef96fb0f2c5a3c861040faadebc2866c4789bd915e5deb48. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/JPS602502354.
Captured TV Station (Housoukyoku Senkyo) Original Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6954f03082f39e1a5a633b7fb04059455a6ef18be0fb9b9c7b92b93d3edd70e2. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/JPS602502341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d349debaae981c449d88a64b7a25bc086fb4ecfc92c2a1807c6df4b83916d3. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/JPS602502342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe451d43da79bf6c849c893ec0ade9588db354db34330b5b90926d77433029ca. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/JPS602502343.