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 0xbfe418e0c59da6c9afac97ff070ab5ea041848c7c70c809c61a2d737114f260a. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d772a794-08d3-4770-a85d-f625b20efd2f.json and https://artists.proofprofile.net/proofs/artist/d772a794-08d3-4770-a85d-f625b20efd2f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
50 Tunes of Jazz from Venus Records - これがヴィーナス・ジャズだ！
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 0x42da380ef7ec91a3f2c4139a345fb97b118eede8614ebfeed3fd14c012b36d2e. 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/JPI291004805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611f9ddd14ee3843f6f391190dd54378081a4c55692c31d139992572d6884653. 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/JPI291207704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28dd553f19fd375daf08e019b00558c0b8e6eee4f05bb058218eba80bdf4b6e0. 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/JPI291004705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976ccf3f198778c87b25c6fbbe08a207b6c5be0865faca6fd206dac7c75981e9. 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/JPI291064004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6dd25cb40bcc3bcf3988af9464f8d0381c0a0fd763b4a775323ecdd5a90ad9. 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/JPI291004401.
50 Tunes of Horn Jazz from Venus Records - これがヴィーナス・ホーン・ジャズだ！
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8ba959f4b2437d488456c40c38b3d4a0244faa59ce1e4739ff1db54523255c. 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/JPI291065901.
Eddie Higgins, Scott Hamilton & Ken Peplowski
ピーシズ・オブ・ビーナス DJ 大塚広子
We Could Make Such Beautiful Music (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52907f55c4f195b984841e86e03973343051ad834fbef3d2506a23b163327da3. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPI291060901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c0ccfd64eb9231cf57ac14a6f6bc76b0de8cbf7c5e673596e3cd02b825187f. 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/JPI291060902.
Ballad Medley ～I Didn't Know About You～Lotus Blossom～Don't You Know I Care
Ballad For Very Tired And Very Sad Lotus Eaters
Dizzy Gillespie Meets Phil Woods Quintet
須永辰緒の夜ジャズ-Jazz Allnighters- digs Venus Jazz Opus 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x493c53ef34c511e49735c5246b07f6bda930772746608eaa24f06badc1902f80. 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/JPI291206907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d27798a93037c2431253a3046db122e5b018edc937316b08302e8d35a49271. 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/JPI291206910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d3ed567099da5c5b5a51d67016d2a31c7f26acb580ebdbe79fedf3a46c2571. 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/JPI291206911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7931d9985618b57084954655bfa4692538e131f60c1e7bc58c242a026680794b. 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/US6R21212000.