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 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 0xfcf0779ea31870403795bb05772872d694e0455d8c808bea1097a51e7d640f38. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5ebae7ea-3754-4995-8771-c55923dd300d.json and https://artists.proofprofile.net/proofs/artist/5ebae7ea-3754-4995-8771-c55923dd300d.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0x9b14b064d2ff800109774705cf7695f80398e8f730bd6b8031cb8fd08e1e4276. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB602102782 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cbb8cd72cae185aaa79e51c1d5d5e77d85bfc4cec0af66e590db9fe6461159. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB602102783 — a six-check JSON result.
Promise - 『仮面ライダー ビヨンド・ジェネレーションズ』主題歌
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36002795ad0889533c760eca281f341cf6284a822dc76dd33e373bb0836b400c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB602104120 — a six-check JSON result.
Dance Dance - 『劇場版 仮面ライダーリバイス バトルファミリア』主題歌
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d911bd26fe6f6d8ea1a2e7e8f3dcd1a24f54d528bb88e39a97b6834592a8120. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB602203081 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee550e1a50f53193096b6f808123edb904b43690673b434eaa4131da06ed2fd1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB602104500 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca8b809ce48adaf78f65ca4ce0db6e3f3eadd06b73876d788b5cdcfd3f1bd2a. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB602104503 — a six-check JSON result.
#激ヤバイス - 『仮面ライダーリバイス』挿入歌
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ab5f2f9f008483bc2d3c540ac4fe90a69ed9b8f4357258740da027b8e075aa. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB602201987 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cded0c6bf305a4d64b176b59ea479dcc73467baccb1cfd540a3c97c2e189538. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB602203365 — a six-check JSON result.
君はそのままで - 『仮面ライダーリバイス』挿入歌
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2702182b24108d1c281d87e5109d9fbe5fd839b9947000971947b62100b616. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB602203380 — a six-check JSON result.
Without you - 『仮面ライダーリバイス The Mystery』主題歌
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa676024dc861d564798537bd446b2ce57018ee66eeae48f4077aabad7e64e2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB602201177 — a six-check JSON result.
Without you - DEAR GAGA Ver. 『DEAR GAGA』主題歌
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c09fb893cda2de61f1f3c4746fbdfed44d3bcf82e1459eaa7a081d03cb17b2e. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB602201962 — a six-check JSON result.
My dream - 『リバイスレガシー 仮面ライダーベイル』主題歌
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651b17e3500eeb848c6d1c2a453550a3e8fe8afabe9d396bcdb197fac4ddfcf4. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB602201989 — a six-check JSON result.
My dream - emikurara Solo ver. 『仮面ライダーリバイス』挿入歌
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc78cc758aed591d4571a7f7049814c82f3ac6bde07ccbb5a56e92006ddce5b32. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB602203098 — a six-check JSON result.
Riot in bloom - 『仮面ライダージャンヌ＆仮面ライダーアギレラ with ガールズリミックス』主題歌
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d644c213eed95e68af243ad581a41121483ea3d2bb344434867a3d289f286f2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB602203248 — a six-check JSON result.
ジョージ・狩崎のライダーシステム - 『仮面ライダーリバイス』キャラクターソング
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c835ec109432ef6d368e2f15174550c07465b2a3e01f5a1c216e257f9c9c297. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB602203384 — a six-check JSON result.
ジョージ・狩崎のライダーシステム - Dark Ver. 『仮面ライダーリバイス』キャラクターソング
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c7b8f401a8db77714e9d1d02ac2d32497535f19a592b8639be0d90ee6bc6aae. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB602203450 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a6ad1cd4c342afb9e03528c007cb5bb71d2da84742008e87a1005759eb2b51. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB602103076 — a six-check JSON result.
ジョージ・狩崎のライダーシステム (『仮面ライダーリバイス』キャラクターソング)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c835ec109432ef6d368e2f15174550c07465b2a3e01f5a1c216e257f9c9c297. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB602203384 — a six-check JSON result.
ジョージ・狩崎のライダーシステム - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b3d9af3803ef3c603c7d8fbc8dc92942fa53930796c6c7f23977cb3691ab9f. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB602203385 — a six-check JSON result.
いとしのFrenemy (『仮面ライダージュウガ VS 仮面ライダーオルテカ』挿入歌)
いとしのFrenemy - 『仮面ライダージュウガ VS 仮面ライダーオルテカ』挿入歌
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f31c1d4f8844601befde0b83a37821a1656cfd787bd7f032f217575a827d49. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB602301999 — a six-check JSON result.