1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x7885720bda5958fd347f2181601d29f94fd28de1f1ff13caf2d26abc3eb26b92. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/484f2db0-7345-4524-b45a-9e6341207ee0.json and https://artists.proofprofile.net/proofs/artist/484f2db0-7345-4524-b45a-9e6341207ee0.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 → block OTSBitcoinBlock must exist at that height 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 0x0e0ae472a585319d066314f222f4a3ef5b397018c0ea255170f687d4dcc7b947. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T03:02:51Z), 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/JPES00602124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b65ad71b41f56eae80a7ed7583e101b1b921bf7ec2c6e17b11fa3de2d6b6d4. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/JPES00502301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf1a1bbf860c7056d781f6d6a4a53677b9e65959d1db6763fca9c077f80b12c. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/JPES00602125.
アジアンタムブルー組曲 第1曲：海辺にて
アジアンタムブルー組曲 第2曲：運命
アジアンタムブルー組曲 第3曲：藍の記憶
木漏れ日（オリジナルピース フォー トゥー）
「ちりとてちん」メインテーマ・ロングバージョン
映画「チェスト」オリジナル・サウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98af8b6a211ae394613464baab3feaddde954c9dbc5124f412d6e7b270f4be80. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/JPES00703494.
「夏の思い出」TVオンエアヴァージョン
Voce contains excerpt from 'Sliabh Na Mban'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a4e3c1591754e1d8536f287d94517a948a73e6130d44bf21184cf5dd0f0458a. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/JPES00802941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d92d07654a70c7cbaaf9e7ade674019399c7f8efc62b44ff89be71e7b13747. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/JPES00802943.
紅葉 心の都へ-スペシャル-美しき古都...千年の旅人より
春風色 for piano&cello 心の都へ-スペシャル-美しき古都...千年の旅人より
春風色 for pipe organ 心の都へ-スペシャル-美しき古都...千年の旅人より
The Oasis Road 心の都へ-スペシャル-美しき古都...千年の旅人より
LUNA 心の都へ-スペシャル-美しき古都...千年の旅人より
THE Oasis Road 心の都へ-スペシャル-美しき古都...千年の旅人より
「鴨、京都へ行く！」ミュージックコレクション
ホントのひかり（ピアノバージョン）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e311b97815e6e88150d4943640894978d37d3c99c40ac7f93b50d349534338e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPU901500742.
珠玉のインスト・クラシック ベストヒット35曲！〜Epic35〜
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63fc21c40a83b0e7613fb653464e7a7740d3a003ee4488598852a1289975804f. 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/JPES01002881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219cdc36000377c7c9c831f197bf2c64f80052e3d6461e04cdbf340dfa53cf62. 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/JPU901702433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaeaf550a8fe896a744435df8f038dff407b6bb849dcfbde54e7d0b5e690e1ba. 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/JPPO01500293.