Patrícia Christiane Guedes Bastos (, ; born 18 April 1970) is a Brazilian singer-songwriter. Biography Born in Macapá, the daughter of singer Oneide Bastos, she began her professional music career at
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 0x6cc7df408dacac4771733c734daf586881b38515b32c82dba91740b21e549a7a. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f2a184da-c01b-4052-a54d-709585692222.json and https://artists.proofprofile.net/proofs/artist/f2a184da-c01b-4052-a54d-709585692222.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 0xc9a51687381c780db3d58d386b93de075ba2300e01ad727cbd5ebe689f68534d. 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/BR4QX1200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd16379cb8d363131d06d8b4c7a4a4a6bb264de99bfd2815b60b2e5c06d998fd6. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/BR4QX1200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27e7fc0480ac57a32bdbbacf8da6ee8855fd9453f1d5feb5ee36833620389a3. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T13:04:09Z), 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/BR4QX1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42fc33afb0c11f8fc7a1ecd45f3123bddbbc8202c51bd38f9d65f9b6f46ee5cc. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/BR4QX1600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30573332a477fdcbd81293f6138e1de8d085c88701f7ea9d2fdec461694326df. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRQD22300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0baf23dad700d4a5b50b15060a08fe7b62dbae8902453e970b395454811a6a. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/BRQD22300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x098d62eb2b402a600fdfb53cbd56ca1abcea33aff23bfbe17280c1351523dfb6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRQD22300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea6385d5bb3a022ecd0c60332f15de388527b692b8f59614179f379da0cec47. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRQD22300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b7476af305b2607546e137fc4a543c6a7060c994bb5523f695d7c7b95134c2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRQD22300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c2b984bd85628ea7905973ef84c653209c967988f28a53d7091be8369f4a10. 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/BRQD22300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a4f0e5b52e7db87a0750e0cafc1a40a464cda64792b935643dca7646abb8d7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRQD22300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd429c6e6ae7a4081fe554b9f1b1c654c3251bee0796e19aa817215ce7b6ed1. 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/BRQD22300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79aff48c6e5b3dd76c1a6868fa8ae455793d5bd82a82e34d50bbc91270a5ac23. 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/BRQD22300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4116526c999ba655c4a023c21363d6295d8d660491dc3672122e019d7263a190. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRQD22300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1bf63eee8356b03cca01f68302336a7346b526a23bca444cf5850cfee0d928. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/BRQD22300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d66b5c67951c35875f21344a8ce5fe6f765faa9a208bce240bbe615f7a40d0a. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/BRQD22300013.
Concorrente - Mestre Sacaca do Encanto Tucuju - O Guardião da Amazônia Negra - Samba 15
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932b3bce3bce4391b888b345758f757fd96fccb0af9d9d3ed0754976ce415683. 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/BXM1Q1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3560a43949f8b8f75416da849c221c21a1e4922159d845461b5a441f060d8b27. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/BRF6E2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e627d27c483c52793d7d3f5a0c77b058a53fb6c3862d46386588757a6fbb007. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/BXSVC1901271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4591d7150bfc3baa493ed51ba9cf5b2abda989fd308e4b8ce8d8736e6a9668fa. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRQD22100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1aaa138519c08bafabfde0be64e4b15a2e41fb875a3a8cc6b99198ef62e6a3c. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/BRQD22100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bca157d2eecd8ce219d7ded86fd3b1b8ec8c411824ad7b4076400eb3c40c41e. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/BXYEP2400013.