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 0x41ab2dcbb770e7677393413fa583621b3bfdda1606ff8b280575d08b3433912b. 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/13f40da5-379d-4354-8f1b-3255ef07684b.json and https://artists.proofprofile.net/proofs/artist/13f40da5-379d-4354-8f1b-3255ef07684b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Furacão do Forró Áudio Especial, Vol.2 (Ao Vivo)
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 0x37e2f62af0272cc202fac67d50d7e7bd49a8b2cfcad9e0bcdc9152ada260aeed. 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/BRTS21101624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98630dc883a8c33d81531590fdb7a188f09e3033a4e9a0730646e7c20453161d. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/BRTS21101627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde87f55661c47d7516a92b8188392b68f7826aef0cb990ec1bfaaea534f25526. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BRTS21101636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b9e797bf4c243dc17bf887128a1325631cd20ee939e879ccdcf4c293b50048. 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/BRTS20700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcffc434689e6f071efbea3f3bb331b8a82cea64e811202ba046e17b703feea8e. 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/BRTS20700018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfccc1f27e393f3434776f7cac404ad098d6e3528dc4a5af1ccc485863b861e49. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/BRTS20900038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cebc35ddb765c69da9995fc763814dd82c481e3a8f4a1b58b8d4eac666c3632. 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/BRTS21101609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41875ab67d0d9a7ca63e6d7f5950335cf8fd4f6d5d6a722e5c526fa213885b1d. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:25:14Z), 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/BRTS21101629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5b3bd68d7f01b6c1fecf922658d55b48d66594607e8f6b8dbd477ec7039b61. 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/BRTS21101632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f2f8efe61e7e8852d0ac88d5dbf872e33386f0af3b2e6b208ab03f6bbedcf5a. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/BRTS22400031.
Cinco Horas / Deu Certo / Ninguém Vai Me Mudar / Sou Assim Não Vou Mudar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc448054f5743a6cfb234ef729563fcad1f1b81ce303dff5ca851823e85481b2f. 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/BRTS22400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e647aaa8c56be051b3ef4d3171c8e1ffef56ab71f9388ca25054a931c82331. 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/FR2X42566115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f909b178f2b40e4db731d0d9a5e6242e06a1ad3ec9fd3a9317e3e34d9550598. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:05:15Z), 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/BRTS22500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8122d56e1f4fd23d1d3e0035370f553cf1d626a22e526082e97a9ac93ee2fa5b. 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/BRTS22500009.
O cara do Fiat Uno / Juliana Bar da Boa / Patricinha
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6764ea90ac9dea369bb63e5b2be39be9191a8d139f106f21dabedb132978a17. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/DGA062547016.
Ai, Ai amor / Galera da Vilinha / Swing louco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6cf36cb5ad3a4c5c8e1967251491449f5379ecc49b496e10b83e5ff74416e23. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:02:54Z), 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/DGA062547017.
Lagrimas e chuva / Adulterio / Ainda é cedo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5831dbdb35525a36e24daf4e5b838bf6282edacbb7c7a883898193c3151fc05f. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:05:59Z), 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/DGA062547018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17cf9c4ca3e602b6db42122773bfcc1a7bc679c4a55468563c657b12d543790d. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/DGA062547025.