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 0x1b98433ab463bbea29b31d4b80be0d0d44ac33e8ddb34cea1d7ab5ea8f98b0ee. 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/8a92abec-3717-4d3f-8f57-80740677d96e.json and https://artists.proofprofile.net/proofs/artist/8a92abec-3717-4d3f-8f57-80740677d96e.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 0xf11aeec58c0e4b3beb57eedd8517368d9f3af6506248e54121f3d1ced3f4eb1f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCJPP2179132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91927e92990881dd86f8c888aa372029c3e637b27fc479a5cbcd7f4d2162cdf8. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCJPP2179234.
Yarushikane (feat. ELIONE & CHICO CARLITO)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a003455048866ee8206b9140e1e42deb80e62bb69d057b3a3a93518fe33867. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCJPR2210699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d1620cded3400b3645c12709fa972e30bf0f1596451f63259303ddb6463f96. 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/TCJPR2227425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadecdf55bf4726f8b328670066eaad9552af881bdb1c4daf74453a2c971b7f23. 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/TCJPA2468116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a5e816e7ce6375360ae52a1bdcca7ad29f876eab22bad149b7b61210a10ef5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCJPA2468134.
Ghetto Scotch (feat. Nia Varan & Don Tecch)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb76d003eb5663126b746888444161ef9ad00b72f90f96dca5d6376b6994d0ec. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCJPA2468141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2680b2a242108deee90e4eb0de4f46f43005f347a02d25cc250641632ccb718. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCJPA2468150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d238bc3ea83019cb12807d2b75b9cb6de52b7640e91c088f02e0e280c9945c9. 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/TCJPY2314117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2680b2a242108deee90e4eb0de4f46f43005f347a02d25cc250641632ccb718. 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/TCJPA2468150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fba64aa35169b31e33b228a62d1f268bf7c0f9463a9963032e41deff4570757. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/TCJPC2486174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf8ef61945148e10e7dd662010f497d8fed1230e67bbc7566af0bf1568c2c19. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/TCJPC2486207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d36cf2c513b8abbfb4239633fc462960109de2d7d7e57684e23f647a6c670a0. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/TCJPC2486251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b5bfac1f31231cc423c79c76c1c22d5a0713b0ef69644553da343a9377d826. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCJPC2486287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369da399d102fe33fd996c9dc30efdf8d9d85de56a3edfb7499ba8d84a544311. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:07:09Z), 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/TCJPC2486196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed0b63eb30ddefc65f9f3db461e440d2c01cb7817a0f908f4e157f4c8fdde57. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:20:43Z), 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/TCJPC2486263.
Real Friends (feat. Masato Hayashi, LUNV LOYAL & dubby bunny)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dec2622cb74524eba0b0318cce2a5882891d7de66d3b82e447bd662b9267e1c. 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/TCJPA2401887.
Manhattan Records Presents (DJ KANJI MIX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862bf1fbcd75fe3b5f0505427bb9a6cb9b1485727b977afeb3148b9682c402e8. 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/JPM591001513.