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 0x2c838868e13b3397f27ed912505cf4583730089f31c292a6a3e9f0faf23a8264. 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/b6dce78d-9ef8-476d-908f-76529a55be1d.json and https://artists.proofprofile.net/proofs/artist/b6dce78d-9ef8-476d-908f-76529a55be1d.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 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 0xddde83702fe4808055143ddef4a3521910b6963f9d81c4ce365001d095011c0f. 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/JPB600715302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b08379bc4fe7adac336cc0c578029a5c7df51cd207fc35c8d54a2c2026451f. 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/JPB600715303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8222bc7bf6fc2f59e97ca0144169d48933c0f4ce2f2d21e504a2a7a842462d9a. 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/JPB600910401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131f19b76c843ac50b567183acf1c3c58ee99e2472ece2d726efd9ab9230794a. 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/JPB600920301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a14514c96e6d6879884607304efc9b40c555a0cb25087498cde64fe7c6d517. 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/JPB600944401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbdf679f9d4742bf7e98ccbf1d152c524bcb52287c6a77db29b98f6cf167c7bd. 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/JPB600922402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288eb2322124a189c2ee38e53513795047180866ddba8fcce854c570a51532b5. 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/JPB600772101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb6c44df8418cb57b3cd1319c3f74f2507019698639e0effbaf70e034d19b2c. 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/JPB600718501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e1ba7424982b0d56f3358557a79f02f2c1ef3775bf91454a0e0fd21b7c26aa. 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/JPB600749401.
いーじゃん! いーじゃん! スゲーじゃん!?
平成仮面ライダー20作品記念ベスト1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7219fec8f02ad652b229f19986bce35036d9dcdcd4992fd55ece8cbdff0d51bc. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB600611401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1401ab506d1ff714ac0b410ccd965201e50dc04b485b4fc8c783d3fb0a598dc. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB600813001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8222bc7bf6fc2f59e97ca0144169d48933c0f4ce2f2d21e504a2a7a842462d9a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB600910401.
恋は渾沌の隷也 - SUPER OMOTENASHI BEATS vol.1 ver
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7940d09ce6b792d9611ee4ae606c852f1275fb295477790009b591052b3cd2b3. 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/JPT551901064.
Believe - SUPER OMOTENASHI BEATS vol.1 ver
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6eda58412a8d9fd2384d27534d695d8c2896373ecbe1f876ed745470a71afb9. 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/JPB601902966.
青春サツバツ論 - SUPER OMOTENASHI BEATS vol.1 ver
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f27c888794c9ae70007831bd61e1967149e4f87a36aa4951ceb729ccdfdf116. 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/JPT551901065.
Gamble Rumble - SUPER OMOTENASHI BEATS vol.1 ver
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bfbbc08b773a9692322ce5e64c633e77eb18d123de54250ea717b7ca21b3569. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPB601902969.
ボクにインビテーション - SUPER OMOTENASHI BEATS vol.1 ver
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8d27048c21414bf7304a6d99b84da134e12b2350265c04bf09df1aba9d027a. 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/JPT551901075.
Prince Night～どこにいたのさ!? MY PRINCESS～ - SUPER OMOTENASHI BEATS vol.1 ver
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c681208149db603028999a88a8c8c6f417d3924b3515c8645f85a6aa2c8fd0. 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/JPT551901076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd33c4705e56f3443eb894de6d0da608c166da0aba2498277d20530322ffca8f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB601902984.
RUN！RUN！RUN！ ～16years after～ - SUPER OMOTENASHI BEATS vol.1 ver
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c31eba9d968f321cf00f478493c89334f747ea2f04fd10e1b34530d35cd02fb. 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/JPT551901077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb6c44df8418cb57b3cd1319c3f74f2507019698639e0effbaf70e034d19b2c. 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/JPB600718501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77b43f6c3becb8fb662e97f55ace568ad63a0c4ff4e835f7d1de1e52e9df6ae. 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/JPB600732801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e1ba7424982b0d56f3358557a79f02f2c1ef3775bf91454a0e0fd21b7c26aa. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB600749401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x529c08c6d40a49b71cfe25ce08ab2bd617802c0df3197763e285b9b84204f484. 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/JPB600749402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dcbc0dcf19e9fb81d01be1624ceba5e599f6dd35e05c51c6199d67777553dcd. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPB600665502.
ハリケーン・リリ、ボストン・マリ - Original Long Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x078edb409fd2adc190634203dd082be9c512b86792dacae88a34e3adee27fd07. 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/JPB600643901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c8cb6937e5773a5298e47caeb2af1e0f5dc9f037e13766dd8fb4118ca690dd5. 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/JPB600772301.
仮面ライダー電王 オリジナルサウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6487a4315295d1359432e355bfa4eec3a23e789b6f50c305084447e561940a36. 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/JPB600732834.
MASKED RIDER series Theme song Re-Product CD SONG ATTACK RIDE Third
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7219fec8f02ad652b229f19986bce35036d9dcdcd4992fd55ece8cbdff0d51bc. 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/JPB600611401.
さらば仮面ライダー電王 ファイナル・カウントダウン オリジナルサウンドトラック