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 0x8329fc0952e494db312153616a411303c615d5884efdebca88b5083cd6219126. 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/a3ba2a69-1b89-48e4-b3f3-bd2bdb6f0b33.json and https://artists.proofprofile.net/proofs/artist/a3ba2a69-1b89-48e4-b3f3-bd2bdb6f0b33.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 0xfc3f9cf1f3e17cbeb76e2437e5f37920c25b323358ee3a145e4b83ecb06bc585. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/BRSME1300988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89cb705b2f341b0b48766ee81e5054fc83cb0d0c58aa0ee062e09cd755f0894f. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/BRSME1400096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854d825169faeab01f18895a139793d464ff55d9605365ceec2acfe39db2ec5e. Chain 2 (Bitcoin): anchored in block 957826 (2026-07-13T08:56:09Z), 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/BRSME1300989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda14abc14313ccdcc33561ef7e44dc87bd962dc63edea41705360580c969085. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BRSME1300996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad6f1f9fa7e9aecef8b8f0e01cd08d7e375312d3bda9e6e79897cb5e8379766a. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/BXGMW1500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb182d16a81a9215b442a2381fc46724a326669d7d2c15ec660b2b76e48fba385. 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/BXGMW1500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x987644d8ee0ae687b7ad25a40345b876756dac556660776f56dea037c8fb170b. 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/BXGMW1500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa095823aca7d76cd0484ba8de16624bf22b1d2a7f0e5f7b905e56ba2d48a3c05. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/BXGMW1500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf9cf8ff957c1be6d505ead1d73774db828cf1b900cf85c441af24156dce244. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/BXGMW1500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70acdb415e97fbd5f15609ef1f23217276bf44600621f33abafa74661f70c1ac. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/BXGMW1500010.
Gabi Luthai (Ao Vivo Em São Paulo / 2019)
Mais Que Agora - Ao Vivo Em São Paulo / 2019
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1d29ce5da202b1225f3ca001eaa4bbea935d243631b01bc0f69b3988aeaff4. 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/BXGMW1900018.
Só Por Garantia - Ao Vivo Em São Paulo / 2019
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116f408547eaafefbe95f0a562a4d72b73e31b77c5dc519c8b97b9abd425b3c8. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/BXGMW1900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa892b794ced6d9cece435cc34b28ac90adb0a34383d592662c41f19983ff3f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BXGMW1900033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3708950e924f17a52edee1809cf4691623e291c2e7448c23c92f5dd12d9b8cc. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/BXGMW1900043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5ee50c705627a467331004dc0163fb228859fc4871b12ad32b850283d7218d. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/BX08N2200220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d19576f903084034e0aaf5167cf9c5310c119042aedb6e9368963163b39a1b. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/BXGMW1900047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7baa14f46fc7fd7e9326093683a85e77fdaf4911d77eb3f3801e1a50615ee2d8. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/BXGMW1900049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b13b0fd35f74cd11f37ae6f6262e31de0a5bd9bd4864854c81a433764d543d2. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/BX08N2300063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9343e08a9bd51d28c98adc62c1fc460320edbf4e0a43b571667480fcb4dea8b. 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/BXGMW1900045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9938855250e3ee53d261d0a391570a95207e0ce9a4dfcaaf32cf7a8cd49e07c. 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/BXGMW1900044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7baa14f46fc7fd7e9326093683a85e77fdaf4911d77eb3f3801e1a50615ee2d8. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/BXGMW1900049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23cf39524797f02f7912864e90d7d405efd07379daf1f69c3b4194e0bf0f597. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/BXGMW1900042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e18b8b60433312b3c95f61165059e31dd0e61b50c0b83a8c7682e771e685294. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/BXGMW2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb76034602b75616118383d01d3040f491baac6db0e6b64eebca39182ffa8c87. 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/BKGRR2200001.