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 0x4fa7bc019951a37cd20d3b73cca70eea4bf20a98b51e36b231b6ac1b732f67c1. 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/8eb86415-7f18-45d6-95df-56d0c0de9593.json and https://artists.proofprofile.net/proofs/artist/8eb86415-7f18-45d6-95df-56d0c0de9593.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 0x99431d8fe5f15e7dbc02378f6f704b03231dfa0d6e779bd85894ef919e29b0fe. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/BR5TG1600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c576a33a2379f939b923c53701c44d91a0824e8304582b9a988fa7289c3eae6. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/BR5TG1600016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b01669d2e1d6aeffc1e85cc39900c19ac4d1815abb4cacf7c560be4dfb9acb5. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/BR5TG1600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eace16f1140dad66cee03dac4d3910789b404eb3b6e1074145e5506010f126a. 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/BR5TG1600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a267ba968424fcb5f922ddfc5828076804dea763ded9659c3e2689582c6b15f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BR5TG1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10439c2dfb64606a76bb568ff6048e095870f12c65303d61fa9e67b0bc7be91f. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:18:43Z), 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/BR5TG1600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9ff6b600345f424c16e675a77d86323c164ce2f0499d611dde5539c99ca468. 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/BR5TG1600031.
Com os Neurônios Evoluindo (C. O. N. E.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6eec4bf43f29a915a5693b9e18ef93c20739249bd7669e591ea4e4bc1b2f064. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:04:00Z), 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/BR5TG1600029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fab5d108fca8474378cce020859658109216a5dd8dfadca33762d5c57a991ad. 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/BR5TG1500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc85a00c6d8cabfe26f88ab29d37914039963d10d94ef70c4d796bac70d14e9e6. 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/BR5TG1700012.
Rainha da Pista - Malik Mustache & Smile Oficial Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9437b4bdcc7f8adfacfece3c36cb99c4fc2ff1ab0286c442d3912939b1322053. 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/QZ5FN1790684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09474e37eef12041794f55be291689032d7ad790001bbc32ebdba2b3a5a5c2c6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BRIMU1100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57a89fb30f8c0615e49220a576150c3e1254affca5ce0bc82d0950d306b3f26. 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/BRIMU1100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57a89fb30f8c0615e49220a576150c3e1254affca5ce0bc82d0950d306b3f26. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BRIMU1100040.
Viva a Revolução (feat. ConeCrewDiretoria)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec2b6c72db00e5532493869cd765258993624072d196ed991f6404c9aeac4a4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BRSME1400668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57a89fb30f8c0615e49220a576150c3e1254affca5ce0bc82d0950d306b3f26. 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/BRIMU1100040.
Sim - Participação especial de ConeCrewDiretoria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df7acee0e776daaee20dc4eeb8738699ec383200555117ccadf6a25aa140337. 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/BRWMB1500173.