thumb | right | alt=BFF Girls, 2019 | BFF Girls, 2019 BFF Girls is a Brazilian girl group formed in the first season of the reality show The Voice Kids. Currently, the group is formed by Bia Torres,
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 0x69904bd314a3c61b78bf3b6f13d33b8cf0b35ceb4d9b5e2d8156aa2e68710d34. 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/9206cfed-843b-4246-b93b-3db3bda7e4c6.json and https://artists.proofprofile.net/proofs/artist/9206cfed-843b-4246-b93b-3db3bda7e4c6.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 0x59221dc2bb145420e93fb4f5a86545cbd473ab969e9ab5c6e61f76f4e57148db. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:54:20Z), 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/BRSME1702304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29473032dbf838eb39458890e9b6cf9a7660c0a67e1836519a11b1f8321013b9. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/BRSME1702109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fee7469cf531068b1e2df47c741df56d1a7500651f2a89ce8f00f44fb4e0a87. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/BRSME1800572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf59343adfcc3415b68f953735894be35f05bf64dd4092043443ad2649a8f3c7. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:10:40Z), 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/BRSME1800908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b511ebdb41e6d3e9bdf9a9dd158c6128a4230bde39a63003d9436c5efe7c8be. 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/BRSME1800573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b8113236dee2fa667ff49bf8aee2576b2b904ba1867554ee6a0cf6b1aa7f509. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/BRSME1800539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x079df9a9a037fc853f7c4a94f67341d89c6c39a5d1e34923b68bd84484744edf. 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/BRSME1801063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e2992fed21090034f4a43733b0913b04284c41981b5bccb281e97d608a7eb5. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/BRSME1801104.
Simples e Romântico (Cover de Nicolas Germano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa29fe6e6ba3c6df1a0721cda1eb92ed31268a23db706a1b17f2894b32edf85. 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/BRSME1800979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d16a0c5ec6f8ffe8661f41280fb9a8e5b58d2c0aa1e3f1f08c8bf1ead77c57. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BRSME1802170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0652c51b4fe578b44705c6ae916b90a168ed5e19c9e99c0132048272cf5609. 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/BRSME1803127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2269af5ef48a701d021fccd74299dd2fc443759aae283725985058223d1fff77. 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/BRSME1900063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e9626ed02e2ca9b1b6ea8bb92b51dc59bb66c6b8769190411cd50f0a2b65be. 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/BRSME1901192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1119262cddf947cae63604ac1ce1dd07914474c91851fe0e8b1f323ee60485. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/BRSME1901917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f9212056f90f60cda70a4040745306cd3bb02ade8b1819bd72450cfa458438. 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/BRSME1901918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab065abd69c5f099450e49eb3a1cee986c6b9b33a02cbb1455179169acf98e51. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:54:34Z), 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/BRSME1901919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d50a06c0150a713b3061e9562de4bcac7c9765662e40b2235df6e99a4738fa7. 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/BRSME1901200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61cd1a03cb269080057854cb9356d815f2b5855e66c3c4e8aef4e599a8e7b15. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/BRSME1903335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdcb0bae061562dd1173aef30f613db3888fb96b98e39994e7e06bd28bce3067. 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/BRSME1905087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace8fde82e63121ea8fa76b2add4b60e8a370fdf53cea468882960dda13bca0f. 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/BRSME1903251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7763b1b71ea3d15b8b1b5bb6ca04225c0354f4db29059f92aa9de10755381342. 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/BRSME2000239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26c5a08246c1749951fe22a864c6dd8bfd3fa17f75ccac89b3659a2fec96539. 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/BRSME2005555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c8f2575d4757c3db548397315cebae9a87391133c5586310d2350697beb1a1. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/BRSME2005558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1badec94474142f8d2520ced7bde0964ee8d6a682ac6d996d0e34f7f6f15e40. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/BRSME2005562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1537f5c09dfb236369132ff88f87e298c689cccce66e883736462ecd275fe8e4. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:39:47Z), 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/BRSME2005567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeac22e14a20b8e2858253cf28c7bbdd3327a8c943975c4f062f95a0a770660d. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/BRSME2005566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14bfdd3cf0a22a96d82f6d6f1a5f5a4ef04a526baa511c485d7f82a78c444009. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/BRSME2005571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b5329e328b4ac29b0bb9488fd95a796de103902236688252f7d7be869eaa73. 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/BRSME2005564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26c5a08246c1749951fe22a864c6dd8bfd3fa17f75ccac89b3659a2fec96539. 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/BRSME2005555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ea8f85af044be1b45271f55a87b5ef7f50b432b868d0d8d6aac5d53c3c9ea7. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/BRSME2005560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4eb44780eb08a3b8431323b9f6a5378ea468858594987b114bac6ffd1290b9. 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/BRSME2005570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6924c71d58a547a1176da9126cd7d5f2d77a241e2e02994969ea09812522f06b. 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/BRSME2005565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0833f10a4c506067bf7034b411954f166791327f2748a27e86d10950db9c976a. 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/BRSME2005561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd119a748038578bd544fbed5744bf1b18960d23663becbf47e39abc5e31365c. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/BRSME2005559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8145d1fae0599b7c5b8d4144680e31bd57e49d4dd55e57b0e84d11334c4261. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:47:48Z), 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/BRSME2005568.
Use Sua Voz (Trilha Sonora da Série Original HBO Max)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc5c45964dce0105b6a7abda4572548f0e0692489979abbb9b2d7fdf47f2f42. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/USNLR2300961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648c8b70f072327de466a53b928ceff5e57b6853a2b63111bdd9468ce6ff2674. 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/USNLR2300960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9935cba710c534d1ba950717a342c01ecd121232d76ff56e003e2d14b29564. 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/USX9P2464519.