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 0x4d82f304b27c174b00648d702d051763a8f9130fa8c21d5c1417ad69a6f8512f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/95fed5f3-5070-4534-9d7d-dc51551e28bd.json and https://artists.proofprofile.net/proofs/artist/95fed5f3-5070-4534-9d7d-dc51551e28bd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
フジテレビ系ドラマ「モトカレマニア」オリジナルサウンドトラック
NHKスペシャル「天皇が創った至宝～正倉院宝物が伝える“日本誕生”～」オリジナル・サウンドトラック
TBS系 金曜ドラマ「キワドい2人-K2- 池袋署刑事課神崎・黒木」オリジナル・サウンドトラック
NHKプレミアムドラマ「カンパニー〜逆転のスワン〜」オリジナル・サウンドトラック
WOWOW オリジナルドラマ 「早朝始発の殺風景」オリジナル・サウンドトラック
読売テレビ・日本テレビ系 木曜ドラマ「勝利の法廷式」オリジナル・サウンドトラック
"Tokyo Poverty Women" Original Soundtrack
連続ドラマW-30「東京貧困女子。-貧困なんて他人事だと思ってた-」オリジナル・サウンドトラック
「Renai Senryaku Kaigi」Original Soundtrack
ドラマ『恋愛戦略会議』オリジナル・サウンドトラック
TVスペシャルアニメ「五等分の花嫁＊」オリジナル・サウンドトラック
テレビ東京 ドラマ８「しょせん他人事ですから 〜とある弁護士の本音の仕事〜」オリジナル・サウンドトラック
TVアニメ「星降る王国のニナ」オリジナル・サウンドトラック
TV Animation "NINA the Starry Bride" Original Soundtrack
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 0x656448dbd33208dc5c30e3b05ab60eab3255b15798e762155dc284789782cbac. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPVI02403098.
TVアニメ「五等分の花嫁」オリジナル・サウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3985a07b32b795178603e61927ef34efdec125f85fa6b739827439862459dd9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPL801910001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5245a66b00ef54b56ed0344e702ed60f6ea9a4e07435b9cbe90bed592246506f. 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/JPL801910002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c1919b22e88418ee6cd15022490ce2c06b71af8c5e9edbfcae50237c4769b9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPL801910003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d49bb0b46c78e366f3cde13565f9350e48b23829b4bed8f4903b4a88580b4f. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/JPL801910004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de287caa46d0c53f9b100966f83bb4738d7d51b892243856ead33eb82395dd3. 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/JPL801910005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e5928588a3f0dc42c51899a9c6497502fb58467f42e6f2ca796c17da3fa526. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPL801910006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5038241be3c6920527ff769ddeeea15fe2007f9943d33265a02ac9cc8d244144. 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/JPL801910007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a986761a2a625922b6541749b1fc7d8f53e5c5b130a58a48ee2adb3138f880. 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/JPL801910009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5902ed25b02ec449dca0328a76695551eaf8c40e32e3260278e92d3e24aa3047. 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/JPL801910013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b508af955872ad8946b0d9f5b9bdea13870d20301154259fb03f6f286962eed. 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/JPL801910016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d98d4584416cb8228976c627cd664e3c78169334e1d3da9cc7de80e0e1dcf92. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/JPL801910008.
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 0x6b7d9033509ab701f10937c03b003afbb5cd1fa8d6897bc1b8e417fd375559da. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/JPL801910010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cfc8bcf5015536a032a271cf15289afccc869eb4e79cf194cc63f35d0ad6169. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/JPL801910011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a346f8bac113d52fa8b53eac79fab6106183f46c11584a1a6c9751c4af827da. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/JPL801910012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8c9562d3b6b452d070dfc39dd7998255eb65cb2d7b2379ad19688014dd7c50. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/JPL801910014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x806166454470dd5443a3ef4d3e7b13a697da22a3ae1316b27460252494e7199e. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/JPL801910015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dfbaea4e922e934edb52ccbae6a267716ae990f26a9c0f4882e64e6354f9cae. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/JPL801910017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe815a3e326f1e42f49974b59c243b5596d3e5e17020e9bce7c2f9fa744cb8c44. 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/JPL801910018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800366bdda58d3a1879ce64e052eba5710609bbc314eef9c0759805d228e5ac0. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/JPL801910019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3ea6045bac090c83f5e3e45016263c3d9079b1f0603dff33ce8879b465ce57. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/JPL801910020.