Leila Pinheiro (born October 16, 1960, in Belém) is a Brazilian Bossa Nova singer, pianist and composer. Her self-titled debut album had the guest performances of Tom Jobim, João Donato, Ivan Lins, Fr
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 0x165ee473ee4930b120401d896ef27fcee65ab50f4312e9ae574dc487a5b80a8f. 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/0a89c420-7a3b-4cb2-8eda-fd4d96b75a8d.json and https://artists.proofprofile.net/proofs/artist/0a89c420-7a3b-4cb2-8eda-fd4d96b75a8d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vamos Partir Pro Mundo - a Música de Antonio Adolfo e Tibério Gaspar
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 0xb5cfa2c193991a31f07a5aa70e1decde1211c68ac5dc010c72b6f80d10fac6dd. 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/BRDEP1900257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd98e4b8cc15af59b8b026761c5fbc2dfe5aff1edaa55d63aee03a401a73100. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRDEP1900258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf875f1b5bde9901cd74e988a943762a9a64783029e2e9e3126974491231b629e. 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/BRDEP1900259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebbc430bbcc9fedfa3b6446ae5ab7c8b3ec3b2c66b74d16c87502d793a94df5c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRDEP1900261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d822ba1a6785cbbf7e92e7ad8e42dd7cdd13e88a791ed2c20c086bb227ac7da. 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/BRLPH1000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648614b5b7bd70d9c855f9151403a0c3c21dc8742b1cb9f5a807d131f66f1ad8. 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/BRLPH1000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb854c602d1f4cac585b00abd71b47deade1c15128e551c52dd95da38c97a5310. 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/BRPUI0700242.
Nos Horizontes do Mundo (Special Edition) [Ao Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d106863af8a962160ceb1c420c51350e4e343eb8dded28318583ae7da3f857. 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/BREMI9400337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e3ba663ca483b24aba9d8575e6bd8953ddf0ab86afa0e516a49feb3bc1d6bd. 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/BRPUI0500296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394f5563784ecf11254365cb5172a1964c95fbfc83556c4a1230b1c6ff59c042. 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/BRPUI0500308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1444bff47fa44882145c699bb987c6b2cf0681a5e272d7b015772ad3b588d264. 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/BRPUI0500301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd664c1360b1723fc86d31d404b6c34d837d2f1e15351ae01c3124fd009005252. 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/BRMCA0100334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe426234a82c33942f1bd8c499553e1f5141ed76d198627290f76a53775427d50. 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/BRMCA0100339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a97714880c862116eb43295e25a49aae217df4eccf57aa2fc5addf15c460de. 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/BRMCA0100338.
Serra Do Luar / Música Incidental: Coração Tranquilo - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf9eb92de24458198d880d6832f2b986db7e2c14c14476ce5fde4e0333ced4d0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRMCA0100336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f8277689ebcc2876e9dde3d9aa4f1713644b78bc5c703533da0ab38158a067. 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/BRMCA0100305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1818a40c886f35a4e409e881c6578e08df84ac35de926d5555b5f727102bfc04. 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/BREMI9400343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7855e3cc1bbbebe276bf6777b00c8ae03ea4b958eafe3a6be1f03b53addc5c. 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/BREMI0000261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826e48e8013b9d9768aa8190d3855f92d50db43aee20bbae2669105820af7233. 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/BRMCA8600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd1a335750500b0a46e25fb1c942c942a86f6316899b39029afce45dd4762bfa. 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/BRPGD9300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc442a142f671f7cbe8d8558f44abb13ed1a840495702d0f537bed345680336. 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/BRMCA9100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c62b83eba0cd6c22abc99146b21e37dac07fc654e130374462c19992fe7b84. 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/BREMI9600382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4735cff6b42bd2c2fbc0b282ea85e1f42357d22338e3134bbfbc3b94d4fc84. 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/BREMI9600378.
Overture / Desafinado / O Pato / Ela É Carioca / Vivo Sonhando / Garota De Ipanema
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x952979e9b2c039171909060d78f0bc05ad40460a9c9d61435265faa49ac7d88c. 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/BREMI9400448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d106863af8a962160ceb1c420c51350e4e343eb8dded28318583ae7da3f857. 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/BREMI9400337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f089817757e5636dcb5f8d86e6ccb19381294e4a01e487843202b82bcc92a10. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:44:24Z), 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/BREMI9400336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c7659ca4f259c5f09497dfd8d752be32b0656faa59a122c0f7d734e33879b8. 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/BREMI9400344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd748615f3bfe06a98151dae8485d57689de4ee4200976f860eaba85ab21b7606. 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/BREMI9400350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd1a335750500b0a46e25fb1c942c942a86f6316899b39029afce45dd4762bfa. 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/BRPGD9300032.
Que Maravilha / Chove Chuva / Mas Que Nada
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef5d0993e2a96b3893c0fb3d24be20ce849980c9e359617c93bc2ec79c82309. 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/BRUM70600809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd1a335750500b0a46e25fb1c942c942a86f6316899b39029afce45dd4762bfa. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRPGD9300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef5d0993e2a96b3893c0fb3d24be20ce849980c9e359617c93bc2ec79c82309. 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/BRUM70600809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826e48e8013b9d9768aa8190d3855f92d50db43aee20bbae2669105820af7233. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRMCA8600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf37ca669b86d72d17b23f65c2e886b083f4110f41c16583d609fb0ae980dd91. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRLPH8300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc0b974bd99984c8d1a302361496dbaf19848aef3f6ba59c60fe2f5898cbc32. 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/BRLPH8300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6291358407ce5e0840acef69d8ec456effb05b51f926c0d812eea53eb9faeeb1. 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/BX30X2000003.
Oceano - Ao Vivo No Rio De Janeiro / 2001
Um Barzinho, Um Violão Ao Vivo (Ao Vivo No Rio De Janeiro / 2001 / Vol. 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22dba8b3c8e2b864e5c03b2a8f6de0b790eeebec856967fbf004d7aa4aaf6bed. 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/BRMCA0100572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6311f4e93fb88b56fdde949700f433f282b9034b728c6db6e195fbbc42e350cf. 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/BRPUI1900186.