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 0xd1b8acdf641619c457caa725a14378ace4353dbecae77aeceb3c8aec4e502fe2. 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/cc6b02b8-12dc-468b-8bc7-0e8e55c7018a.json and https://artists.proofprofile.net/proofs/artist/cc6b02b8-12dc-468b-8bc7-0e8e55c7018a.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 0x293487032a9444283ec3091242c795cd54440b09cde780c3c30a98ba8ea1ba9b. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/JPSR00501641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc0165e437a36b6ee2934dba949b85143d99ac0437bb3cd905a4d50cb82e67c. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/JPSR00006821.
デビュー20周年記念スーパーシングルコレクション 源風
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e0e96859c429074cd4ee038106f5a4e7c771ef1c879aa293edfcf7967011ac. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:12:00Z), 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/JPSR08908950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd21c3ace12e3b818bec4abb418ca4b954303200f4b28b3c93458cad3c44899cd. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/JPSR09160649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd259fb2540b25655090e48576a80b293e520049cfb3a6d77715ef8923b9fe52. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:41:46Z), 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/JPSR09602185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x257e6c7a26808474a50880fec768edbd6e0974d81fea08cd4c746183c0ddb0a0. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JPSR00106586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9cd01bc3bcb47286d76f5f0bd2311e13bde7ffa61b9811e2a27fd3ab0567671. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/JPSR00202205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced8e6b43e27d70d0ebc674a98d53c686a3ac74cf288ebe0dc7f9d523592b954. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/JPSR00300721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca738c28e5a322af693184cdac573a057741aab249550ecf88dd38a06668bc11. 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/JPSR00801284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ddd86e982fd08b41178b60393e0fff6a2f6eccafc8877c8d87436e9d4a512e0. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPSR09064499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c284715551fb08ffba0de6ae18429af23aa6260e9a431fc74a5b97dfa294146. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/JPSR00801282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ed50e914d14c5afd6bc450894a2862d04e2cd3f4d6467ccc9c23a38059ced8. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/JPSR09602940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f65e8efb30967dc4c29696a8bd4f6d19a0334752878023c213e29f8c0f1ee0. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/JPSR09402297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0137824a84dfb553330772b791b9a7d599333ad714aa7bbe3e1e13eea9b7c540. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/JPSR09707108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e0e274ae6fe9ef4ba8efa1adf13eeacff8ac99c720834f0803b7751e15a02d. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/JPSR00903833.
逢いたい、今すぐあなたに・・・。 (お得盤）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281dbdafca14184a225fb7753fe6653cc6899c8d1de98d93a9a9dacff747ba52. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:06:29Z), 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/JPP401100805.
石原詢子 秘蔵名曲全集〜カップリングコレクション〜
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12eae6224ff1767940c82bdb3e0ed8df5a6612e3eb90c252e5f57d969e487229. 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/JPSR00700082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc4e67eaa6594be166940fca0313aa9a5c5c2aa896139f0d7195d4698acc8b4. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/JPP401700255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988343ce70ef80f0ed57cc440b2ffd176b861e41d79d833469a1196b17558419. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:30:59Z), 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/JPP401700256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967cb7a92c23e25d4a88c2d43360836da87d76a25774634fa19cd08e8f677130. 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/JPP401900233.
石原詢子 特選演歌・ヒット全曲集
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x736e9fe754f1ddefd411641a6d5ba2e60d1d0395654378b6cacbc0c6709bf031. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPU902301828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c3d9f8b94eb66a4fca615af8a3752ed271414f08d2d000bf501c09d12d770d. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:21:40Z), 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/JPU902401810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9aa39987005c7e865976cc9c1c97072249956f5ae75579939039b32e244831. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/JPU902401811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c3d9f8b94eb66a4fca615af8a3752ed271414f08d2d000bf501c09d12d770d. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/JPU902401810.