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 0x7802a3972335eb9acb8e0e7d965a4de28eae971bea6960db6aa34febf4dc7a88. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c178384a-eb16-4d63-88c8-e895f9e2be4d.json and https://artists.proofprofile.net/proofs/artist/c178384a-eb16-4d63-88c8-e895f9e2be4d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
NHK BS4Kドラマ「歩くひと」オリジナル・サウンドトラック
水ドラ25「八月は夜のバッティングセンターで。」オリジナル・サウンドトラック
Night Batting Cage In August TV Suidora 25 Original Soundtrack Album
Tokyo Houchi Shokudo TV Suidora 25 Original Soundtrack
ドラマ25「東京放置食堂」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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17308e5a9801e2dc1dab9a1e2d76c1e08ce99cf38b9d712d3807a6f3aaa0020f. 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/TCJPQ2111855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b4127c1752c126a6fc9f7063cc9d951633a0957a8c2d11c4b68ff55611a3c6. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:25:27Z), 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/TCJPQ2111859.
ABC TVdrama MUSHOBOKE Original Soundtrack
ABCテレビ ドラマ＋「ムショぼけ」オリジナル・サウンドトラック
The Sheath Master ”FUJINSHI” Original Soundtrack
ABCテレビ ドラマL 「封刃師」オリジナル・サウンドトラック
WOWOWオリジナルドラマ「ダブル」オリジナル・サウンドトラック
「生きててごめんなさい」 オリジナル・サウンドトラック
カンテレ・フジテレビ系 火ドラ★イレブン「ウソ婚」オリジナル・サウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x716c7dc9ad1db2cab6795c68b9da970fe58ef10a461292626853659f0798411a. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/JP92E2300668.
Aoshima-kun is a Bully! ORIGINAL SOUNDTRACK
テレビ朝日系オシドラサタデー「青島くんはいじわる」オリジナル・サウンドトラック