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 0xc253a0970efb455638728e8f99596f3b1ca2b6eae1b3b51841e9bedf4222fce7. 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/c0fb9470-56af-4709-86b3-141b96db2db0.json and https://artists.proofprofile.net/proofs/artist/c0fb9470-56af-4709-86b3-141b96db2db0.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 0xa8d575705c236909b146194813146385493de5932efef850d2568bea5f84e25a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZES92235195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003a464ba50c25ef3b94cec5b3cb25405a9228406a78a49388b6d290df58127c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZFZ32367959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12dd565d27a75aa10f1d11e961f2e899756b8fd43d925e74db3510d0ed95bb2d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZHNC2497562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf72df5f8d98a06f0fccac5751d88e3e7c213529f895c92ed544518b6f855d76. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZK6J2428457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7bcc9e381313abad48c8643cf9189279a3f26b31fd63d805f55a17232aed337. 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/QZZ7V2491219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76adf0afbf7b78b34ed4d8574d3aa3e4db5f1bf542dcf3332473bbdb208c2cec. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QT3EY2424666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4385e34b14e06b7b35047b1fe4fa9f532e598b450dbd37a283740c8df1870bd. 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/QZK6F2576922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a04648793d1445159d495ea9a7db375d88f362fa8014a169206d47ed9a28f0. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/QZTBC2534104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc414750d4e2a4b367806049be59202a50c40fd46894570324eaf1af59422dbd7. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZTBC2534105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42080a3fad54a0b5a714f25947176913f21666dfc269a9bc166e53d76209800. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZTBC2534106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938c085cc96d30756e535a9947387b2b8bcffc6618aa3c8fa75c3c35b898892c. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T16:46:31Z), 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/QZTBC2534107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183eb5e34a48637377320524ee4a741910e233e509d755d1b2eb9fb25fd67134. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZTBC2534108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69f605d1ca56bc90db64f5ffc7e4281d4c1fba19f32de533ded139f7a0ac191. 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/QZTBC2534109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea0b1b26960066c9e5cf16995ae15b7d565a50fc434c4dcdd28e39b41b4b732. 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/QZK6M2482929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68a1d505ebbfd4a274c949ab78a1d42a88b626d8e2ea7afa299e2cea986d217. 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/QZTB32286580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f39971d28a618e9d5cd0f71f8a1cb2fb56b9690a401af9dbfc0bfe84f9a2f19. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZTB22241351.
Bang Mines (feat. DoggFatherPoloh, $paz & Imafool)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6af56d1c4a99e2063bc90a654c9485691652f0cefca78e85431b2fb2a28c940. 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/QZK6K2339159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6502bfeb2b245576b701aae9173c295bb2ee09c3eae1e500929892d619d17401. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZES52366188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544e8a4eb39f0fc1f0118612c2a6621aad2b316a56995f33fa71f1c51a177b75. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/QZFZ62329437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e3aee4406832c28bb6c548722e96aa4b61f1c1922ed24faabb1828a0ceee6c2. 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/QZDA62435297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd41ff96298bbba6d83a6387b3a9eb5606e4673711202aa76c16eb4d76c25bddf. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZTAT2429736.