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 0x63e9a0913a4da3e6d5aa951658eecbc95855b089dde2268b94c48451f0aa9ea4. 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/01caa807-4900-47b7-b5d9-1bb1186c5399.json and https://artists.proofprofile.net/proofs/artist/01caa807-4900-47b7-b5d9-1bb1186c5399.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 0xd65f71ff58610ad17f6b7b8f9732a1da2ea2f92630e7caccefa1ab9a68412a1d. 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/FR6V80141107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6e2897b879926aec046d27b60051d3e485eb493d8eab448125698ae89d1837. 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/FR6V80141112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f32196c886bfe19a2e7f6cbf60ea596c96159367a283f5a006bc28ac6e73a71. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:28:47Z), 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/FR6V80141167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39dfa02276dd278980abdbbba8f36d5bc654042a054a826a2b5e687fa491fc81. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR6V80141173.
Guerilla Split Series Vol. 2: Diego Pallavas/Justin(e)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13e9a010cdc63bb029a75d6ad45268a69f32ed53ff0f759eb05336994fb208d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FR6V80141662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec2e0cfc1296c58760cf8e62fadc29d74adbb2c0fdbcd6d322347bfed8f2f53. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:59:21Z), 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/FR6V81272367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ff75093050aaaa6304b61db41d344812889a5319d3a9c363693db3a95fcd1c. 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/FR6V81272369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a872b97302d82a76129940721b048500b2d09efc87e73cd443695fc533abb3. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR6V81272373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e0bbb3b1fb2c0c1bc5cb899bc2e04a8d63d5b4f44d4702ddc74bfeee526624. 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/FR6V81272375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6cb75e60c86fa7c324da30f8bb32ec10557a71740c4768d8ca74726cfcf592. 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/FR6V81272377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1481db787cef339970cfe3bb063b272c96cb2c6c1a33f728a6e73e919a399857. 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/FR6V81272380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce97a83256ef6902f2671689427170128bfa5533430cf50b1fa1473244d0959e. 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/FR6V82379111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3ac14e17bfc71842230acdb7607bd277bc92c62b458f58472ea9972d82ba8a. 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/FR6V82379116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9147edabee7f9402e3a9c69254426eae1484443cf3e8c2712de253d94a117025. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:31:05Z), 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/FR9W11720331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60aee2c6cc9f586133c391653a541033465a1c1700abf755ba470e5aacf9902f. 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/FR9W11720332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6917b5be04fb73ac9518061656da400507e2cb25e3532e9db0b595f62a85055. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/FR9W11720333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9246f5cc31f8fdab3f4de7e5d516d8c235a5a15257f0442f6d09358663f44c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR9W11720339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaffb4e00f6e3989eadaf478dc5b142b2f85aa2fc9911bf934bbd9b6d7c22dd5d. 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/CAE562018908.