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 0x8076588ef0285fe8ae022e3457be968385761b1bfedc363d25f4d786293a8cd7. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4f0ac68b-b511-43ec-87fa-2006ae55c73a.json and https://artists.proofprofile.net/proofs/artist/4f0ac68b-b511-43ec-87fa-2006ae55c73a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
仮面ライダーゼロワン 主題歌＆挿入歌 ベスト ソング コレクション
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 0xc22582c29473c650a2d6ea97a37dc0433a4e8b95fe095669a2a3ce82e9091368. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPB601904011.
Another Daybreak（『仮面ライダー 令和 ザ・ファースト・ジェネレーション』主題歌）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ad555a863ca9a824aa138d40031f247d15976c3c5f0c99a47f6577aecdeb3d. 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/JPB601904012.
お前を止められるのはただ一人、俺だ！～Find a new life（『仮面ライダーゼロワン』挿入歌）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780d2d6bcf2f910539b2274eb331ebc198911aad7d62f2e813f9d802e877c679. 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/JPB602002632.
ハイブリッドライズ！ゼロワン～Rising sun（『仮面ライダーゼロワン』挿入歌）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5141570dc97d384a70ff3892fba4a575456309a6cb99c041d649aa6107615e20. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPB602002633.
変身！ゼロツー～Now is the right time（『仮面ライダーゼロワン』挿入歌）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a41e44f358a0a0f9e690ff089da520b1d0ffbc3d39b47f476057d62bbb6670. 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/JPB602002634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bdbfac61807947090b14882e5509b8e4462972711e8d9c53aaf89aa04ef60b8. 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/JPB601902864.
Another Daybreak（『仮面ライダー 令和 ザ・ファースト・ジェネレーション』主題歌 01 Movie Edition）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8533fc948b65d785fce8e0c6e7a4fdcc13cce38c4b35af60a8e40ee1fbc1722. 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/JPB601904001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe59ecce68cfac96ea09931131105af15d18be4708ae3ca94b6358f233b48419. 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/JPB602002636.
ハイブリッドライズ！ゼロワン～Rising sun （instrumental）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69cfa03c2db1837fe7e7fafa82a1f111e498d595855dc0eec5f3e4ad7b434fcd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPB602002639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528f63fab3c5e263913f0ed7e9ffcb0672789a86adfe47b4b580fe7c0a225750. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPX892300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae19d710f7873620af719ea091a14599ebd69d354bafe48262816870e81527ee. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPX892300039.
PARTY ANTHEM ～Good vibes only～ (2022 remaster)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ef0faffcd94543d2e8785385e4bea56cdafcd469d640610fe944f5e7303d45. 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/JPX892300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c205a7ff8e9d5a3e8e52fd32255c8480a21f53c68a2381eba9c82b5dd6bac2d. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/JPX892300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ce0b065300ee186a99d23d1490623abd7d4004d6bebafecd77001e2df78103. 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/JPX892300042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd5d42d2656d47391c61655ae1fbe661c8d7189e1bbfbdeb9d1266ebe4c58ed. 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/JPX892300043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c66c024d747f32fdcf3514316728d6772e385cd06ae6eee06b06ab1ca8bb362. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPX892300062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb31d3d208972617f13b51c8517c4e46fb5abcd615d9474ac88f062dbec5602. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPX892300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593f00024a248f285bb26e462f422952452fa704634b77575eb9b97b1f3e1aea. 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/JPX892300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ec605f099c2c4f9971400af3ad7df903ac2ec96f7de50cf3d129d6a87a499b. 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/JPX892300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b64148615c1f398dca56c6b818fee0e37bfc44f979bfcfd9e4f44643dfe78a. 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/JPX892300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266060c789a822df5e51e8e7b90d7df05ca34a02574ee4d4632901f871582f5d. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/JPX892300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a015a1dfa5cf6622fcadfb2e0fa65b3ebd0246b7196a600381e4d89145391d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPX892300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7fb02343caf1b9f89aad99e4857d28f78c3311c655f4c88fb5e10000eaca38. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPX892300055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e2a7e29baf5d6b655157acfd20cdd58bca7112f37526aea4c506b7c683bb73. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/JPX892300066.
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