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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae3cd99658934a182ccd984478ee5a1275429e4c5a3c4ce0375a3c757e5f051. 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/7dee761b-e66f-467e-a234-c17272e8ece8.json and https://artists.proofprofile.net/proofs/artist/7dee761b-e66f-467e-a234-c17272e8ece8.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x986267431967988e5c99e8a1610fbab2dbafc9037f2fbe869089bda4ba223f35. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/DEH900900135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e41549f6bfdd1330ee4647551df37c30bf3d0f7f71c6111f5da42d1ce67f50. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DEH900900140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4929a7de58eeba4c4997c21316aa4eac7d680aa93a85f1449c1219d0ecb7c6e. 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/DEH901100341.
Narodna International - Sumakari & Pellectronica vs. Cmc & Silenta Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6bae6ec6f76baf8634c16b7c6e72c834aca8988b62cce85a12be05406af700b. 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/DEH901200766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2ff32744c4e0496e3396f09f0a02e21aa4f988351c35fdc7693c5c4d205d65. 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/DEH901200768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1152704777fae9a06c07f696b36cc6ec6f1ef8d6037d4082a149ee04c4d752. 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/DEH901200769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec2fb19704d63fed99dd6e0785491b69f36f8969c59f7bec25f9b941a13fd2e5. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DEH901200770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ad3c090dcfc6bf8e1ff01bc8a30bdb69ee3862bdf8af8385d8fbd5666cb708. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/DEH901200773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33f991fedb9bd89287ca3a5cf2807a6211847a671dfdf5dc92fcd26e4be8c63. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/DEH901200778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23ecab33e6c2c89d28f8e112940e8588191dba19be8aecda0fd1cb9d8bad3fb. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEH901200779.
Blast Your Ghetto (CMC & Silenta Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce65ba9512a7d2257ec693077d1443e233750c3dd5b4ab78e550feae6ade855. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/DESW71500083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34056e1777b9f0e18b293f62c07c2199ef5d382afc22f8aabc3b0197ea6e7ba1. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/DESW71500085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd72dd689c0aa691f58a4e312970d2fadf40aa9e713921e88329a36cafb61f0b. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/DESW71500087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f17ef19fa6dedc1c8aa577f388ee6c644b56e7acfa73f6f09d301fdd8701a66. 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/DESW71500088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39103331158ab1bad42c82797cae271009d845eb95757f096c0bcb570990e6a2. 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/DESW71500089.
Blast Your Ghetto (Glenn Gatsby & Dacha Dynamics Remix)
Cigani Stardust (Balkan Bass & Dacha Dynamics Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12c1051c4d5e1ad10f14d748d7464262066bff919ea4b98a304fe63b6c37b56. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/DESW72400061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97287d9cf4ccf73e46014ec38b68db7c03e7f79848ea96ea1c3cb5d8dfb5f0b6. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/US83Z2215719.