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 0xc7fdad4620e586dd74ceed1c986dd9bfa696baf2a20a9d40f94460a6f81a304f. 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/613bd838-f159-4a11-ac14-005c4b6988a2.json and https://artists.proofprofile.net/proofs/artist/613bd838-f159-4a11-ac14-005c4b6988a2.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 0x1818c3ba979e77b269aec3bd0772421585fcbcc32c4a9061f6e2ff91d0a1d0ed. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BRESM0000549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcbc441f8f1e2f521914fd6c9d099166b79ddd7f4220809480f6a0f25b642c58. 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/BRESM0000559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96bb2c7cade739e5992db06a4da086be2b74c1275b027deb2383658df803c387. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:37:45Z), 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/BRESM0000552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd70e3fb7d64bfbd21708531b4d2ea2cecb42c238bbb06d6ed5b665094942e5. 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/BRESM0000555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f57e4e77f8cba879ede13170a6aaabc84bee8edd58ea114f0f5fa47866c2d0. 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/BRESM0000562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x640bbfaefa13df2b390d76223461856e9719ef5af2fcafd5926e8feaf54aaab6. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/BRESM0200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb61a98feb79048413be080b9fb299da8af824758595c033dcc1a3b2d9c1827. 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/BRESM0200038.
Não te amar é impossível (Coisas dessa vida)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8184937efa5f1bdccfeb2cabbce50b5a3adddd31998692c79cf57ffa7a2848f5. 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/BRESM0200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27dde24ed138f0641ff82a57faed862405f1ce9dffdabda285fff11bcb446e3. 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/BRESM0200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c4ed6bd8cf0ccc2fc2a9fde59ab70d8f87143b6b8dca30eaf61570185e6ce4. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/BRESM0300138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x654d2ba2cbe4219cc952b5f7c86083ef27d2014e5f92992e5af4450b2fe1ff08. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/BRESM0300146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59aeff85abdc900cfa37b720b226f273a3dbc0efd94e8c9e0d1f687b5fb5255c. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/BRESM0400332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c061f996c36463d3ed89069315dda0c167ad93b94445639ac956ae3a3cd452. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/BRESM0400329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2510e3c99ad6a817d87913f5ac2605c6febd9f657ab6756012c1e95a1b95dae1. 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/BRESM0400330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71cf2fff64c644673b5d61c979f44f0b951b76c62dbefc63354f2a1a850bec76. 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/BRLKP0600044.
Nossa Escola Sertaneja (Acústico) [Ao Vivo]
Bijuteria / Ausência / Falando as Paredes (Acústico) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7aaa3f8889277aba0687a9de5ab9a8e7a83ba9e2005c1dd434c9f798f209cb9. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:04:44Z), 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/US7VG1771782.
Amor Rebelde / Ciúme de Tudo / Sonhei Com Você (Acústico) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723851ffde30a39554c027b162eb832b88a634c94a32a266e0919a65fe3bb243. 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/US7VG1771783.
Olha Amor / O Que Tiver Que Vir Virá / Nascemos pra Cantar (Acústico) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5703c7c4d9ff61aa3a41ae09d93867bc59b2c77a83728f2142a26875874a715f. 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/US7VG1771789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80608d465716978be9e20c6a6b4ea8911183673dd840eeaeab704a8ca84d90fb. 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/BRESM0100321.