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 0x23d971571b2393915bea6ee875f960d9ac4bfcf72d6046b07203855a5761c922. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a42a9c01-c8ad-439b-8625-591637766a6e.json and https://artists.proofprofile.net/proofs/artist/a42a9c01-c8ad-439b-8625-591637766a6e.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 0xcafbf385852d1b61b9a1e8633be1adf94e6ef22eb35e4e7edc1dd9f1873840d8. 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/QZGLM2460956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc136d30cfbdcb9cfa27498113dc4fa3bccbdc442b30e437bf28d3a789a9fc17. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US7VG2593626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c844de17e9164d98926af053287337932bbe75ab12549ea5042469ed7fb567. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:39:17Z), 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/QZNJW2523679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd506472a080a4f876f87afa8996bd62b71ebdebf7878ae9329ac6401a35de7. 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/BK4DA2307752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff701a61515923d80568ebbd53dfb70e5358b68df28f081c34468c1fc3ed32e. 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/USWL12303292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff701a61515923d80568ebbd53dfb70e5358b68df28f081c34468c1fc3ed32e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USWL12303292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b2aed0254705333d923f7e4a5cca1c84b70762068107082289038bf405fe06. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZRP42374545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8853d9e1613d94b4abddb080deb8a392037e534eaef456f9a909079f6eadbc0f. 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/QM4TW2524619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe47fa15f8321892f3ed80215191cd30e442d0ba40297487246d5b525c04b3fdf. 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/QM4TW2524560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ba856a68c5e2143689847229cd1a995b48c043d301ff6399de265e038b5488. 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/QM4TW2524314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c19cc58bd173f868b517f198279ab3eb94a542c33bcc920daa1b43446ea8e2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM4TW2524495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8363fcf4276b3fd8db842c46e0668c552509924a0aaa310b491c4987343096a6. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZNJY2438241.
TERRITORIO: APACHE VOL.2 - CHAMPION SOUND
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fad1a9a3eb76bc89c60cd1d6ffafc97ebbe4825598c6d6db9478667b252501e. 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/QZW9K2420146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf79e6b53aeba71ab8517b36e8dd2bf17d5673b85b91151db819a49a4ba442e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZW9K2467838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5cbd3951ddc5a0367d52ab79e118ceca11c98bb9ca1edece768e849f4358ea. 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/QZW9K2467841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58fb47fd7858b7e79fd4b8a41f6861a0d7361e0efe6e617889b69577a550ac4. 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/QZW9K2467842.
VNTI-SYSTEM - CARIBBEAN CONNECTION REMIX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x191c02e51444211cf914e1dfe4f1a71809c8599823bc3a363df4d5bd5d56257f. 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/QZW9K2467843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2ce602ca46aab1964111fd53a386a7e49fd6e2aad44f152f00da97c30c8a12. 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/QZW9K2467845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18ea11aff18e45f5418b1866127cfd4cc494e3b5e1e92a7e4db2b32a79ab5c9. 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/QZW9K2467847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0681208606df2d5f92a63212e41a853d5ca040175d6bb1c6b181820970de5347. 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/MXA2M2300233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e119bbfd794526d93dfa9bae3deecc50a3296b5e8d77e688842bb7f51c37f7d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DGA0M2498612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67d2aa4e25393295ec76448cd851021ac68797e52b0195b828a71cc6ba43192. 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/DGA0P2455629.