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 0x7d1ab77824a8765a3369d993887ab3f014d40fdf323e1287b0ceefaf3c945dea. 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/84a2ad70-0841-41c0-953d-3f0c054a48a7.json and https://artists.proofprofile.net/proofs/artist/84a2ad70-0841-41c0-953d-3f0c054a48a7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
まほろ駅前多田便利軒（オリジナル・サウンドトラック）
Mahoro Ekimae Tada Benriken(Original Soundtrack)
Shigeru Kishida no Mahoro Gekiban Ongaku Zenshu
Shigeru Kishida "Folklore Playlist No.1"
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 0xe34d8c636b8365dde2ea92cad549355fa0e193b7c5e66d3546545586791a9d6a. 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/JPVI01900487.
岸田繁「フォークロア・プレイリスト I」
岸田繁:弦楽五重奏のための古風な舞曲「あなたとの旅」(管弦楽版)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf251b80ab959c92ebe5985a4e4f6b4d06bff7e131d1d9c4085088c8d802f7267. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPVI01900369.
バルトーク:ルーマニアンフォークダンス
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34d8c636b8365dde2ea92cad549355fa0e193b7c5e66d3546545586791a9d6a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPVI01900487.
リラックマとカオルさん オリジナル・サウンドトラック (NETFLIXオリジナルシリーズ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e90d366276a5d6d371cb426f7ad6a1e20938f48e699fa6f9115a27eeed72f5. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/JPVI01901088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb2d6c294b010c5bbd3fbcb966a49b584dcaa15310612f4473a767db531a3f6. 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/JPVI01901089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ab4b18aa736262ffd2c7789a8ad5f5a65cc62d9b7bb936bec63ea23b960a35. 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/JPVI01901094.
Rilakkuma and Kaoru Original Soundtrack (A NETFLIX ORIGINAL SERIES)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fbb3525370a4e49d6138885d9a2f541304dce93e1052c7ad3d665ff5e8ca77f. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/JPVI01901087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb2d6c294b010c5bbd3fbcb966a49b584dcaa15310612f4473a767db531a3f6. 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/JPVI01901089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f22175b2921520fbdc4f02338b0a7d4f5514a6246e4c943ab087c1528450d3. 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/JPVI01901090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8df6b5076cf963af149dcf34e23d8459f8d5c54745069e6e4b0b20df502da7. 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/JPVI01901091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d9e28fe330bedef3ef7ca9073257724a7ff171092631e589cd1575f06ace85. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/JPVI01901102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeaca1c6f0abf6dffa711d0f86c10ba03a17384dc0225c5622c5f3e16ca64829. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/JPVI01901107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cee9e0901685d0408d6fb9f7e7b4ec9abad2c6a8a2784e13649941f90a99bab. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T16:22:12Z), 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/JPVI02001355.
Rilakkuma's Theme Park Adventure Original Soundtrack (NETFLIX SERIES)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab997eda5e5c9cbb64120c91e625017d06d1d8be2e698c89cc7aa573c235953. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPVI02201964.
リラックマと遊園地 オリジナル・サウンドトラック (NETFLIXシリーズ)
Call Me Chihiro -The Original Soundtrack-
映画「ちひろさん」-オリジナル・サウンドトラック-
弦楽四重奏のための古風な舞曲『あなたとの旅』 (Live at Kyoto Art Center, 2025)
Studio Ghibli Tribute Album "Ghibli o Utau"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe736e82fe3c213c035e3cebd2b6ecde3b2371a4fc46bea2a5e54043560336cac. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPVI02304201.