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 0x524c528be1d7fd011f9acba5999bff7849a2a43bc5a48b0f1ac161524bcfe8b1. 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/96ec0b3c-86e6-4dfe-bf13-acd5c84f50c6.json and https://artists.proofprofile.net/proofs/artist/96ec0b3c-86e6-4dfe-bf13-acd5c84f50c6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xafd9521b344ea7d55067ff8fca8a3ffeac3e9225efec988feaf77327db1c97ef. 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/TCJPL2058803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a19ac75b58c2608c1fffbe124b6d81abb3ef41843aec11fec7e6b69be82181. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/TCJPN2189331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11a4284af2a3cb965a272b66aa5c7cde1d92cd774c8a1b8a9ba7403a2b924eb. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:40:15Z), 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/TCJPN2198049.
ジュースごくごく俱楽部のテーマ (一発録りおめおめver.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b022670e687fa37a5db15acf4b0b1526e9961b70d6d6878929bef622dba360. 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/JPN002100077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21b4bf728eaf79d714b3dd3f84b2df6bc9f8e39445d4e6b234f75875060d43b. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/JPN002200077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0556767d1164299403292ac6f55b1496d0f2eca0772be5f87bcae47cca8c8062. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPN002200078.
ジュースごくごく倶楽部のテーマ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef04f67f17133188da32f04e75a1c3635e4c579162167dca6faa488297dfb0a. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/JPN002200153.
カフェラテごくごく倶楽部のテーマ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab107769bef48c5ebcd00211212c08e17239422284197e5951c5a4147f0eaea. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:19:05Z), 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/JPN002200165.
ジュースごくごく倶楽部の登場曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0432a79193789361f3c41af73a6078b821397827f7ff7e2d70c1f1b66315a7. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:06:28Z), 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/JPN002300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ef32ac1b777973ba30af70e9e40a4cd7540cfb00bfbca872fe97d37e4d9f80. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/JPN002300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x609f34873dc8badbcaa5c49b32fcf7cd65c22e23ae617ea790eaf3c3bc016825. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:52:19Z), 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/JPN002300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022b74e59593d1e47556d4480615b99f2f62a55dbeb23878bfbab6f8c8ca5168. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/JPN002300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576f103348d3407416ec81d532dce4e416ffe558f64aebde23374e37a01c172e. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/JPN002300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2d3844d894d6e3d1ad767592fc11266a28dfc82ab27ba7c6dadf250995dfc0. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:47:35Z), 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/JPN002300403.
金井幸男誕生日おめでとう～金属バット持ってこい～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9fee76cf79876bb267ba7874f2b9523d294d49b1c0fe846f671e9cf54ad7216. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/JPN002400030.
インフィールドスパゲッティフライ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5ee63bd02d2369d09c7a00c6879845b90eaab0bca8c437a1522b813a8b023e. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:30:17Z), 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/JPN002400197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539baf50ae0ae8aa091482914a567a45eb4c801d1b57cd9e2f7d89ee0567e10f. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:11:49Z), 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/JPN002300337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x110db53a5dcaa5ad8e3661cd362bf4106ed590f6f6f539dbc868ac84e68770c8. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/JPN002300361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926cf03adfcf4101c50d5136e529c70e31e2ca0b03705c87732a91dc98a2a851. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/JPN002400198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826e5dbcae0b21a68f9eda53987b91d58881549f2d8c3612d5d36b688a3926de. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/JPN002400202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71299f5af7b3a8ad894451ee8d76027300d3d68d320df1b124f94dcb65c0bba0. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:38:39Z), 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/JPN002400203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e32ac59c29668d1caa684a32f6950f614be4b4df6f6fb96d7f201dac6141b5. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/JPN002500133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59832f0e5b46e6ff78cbd2582181b3c7d2b2e08db54cc1b8531382ab92ba7430. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/JPN002500150.