thumb|Genival Lacerda in 2017, holding his Order of Cultural Merit. Genival Lacerda Cavalcante (5 April 1931 – 7 January 2021) was a Brazilian forró singer-songwriter. Life and career Lacerda was bor
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 0xea291c75d3ffe4206858e42b6b61f973d7c07ddb071e569b1278bce368b7b853. 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/464533b6-c21a-481e-b2f2-cc8a991e8a2a.json and https://artists.proofprofile.net/proofs/artist/464533b6-c21a-481e-b2f2-cc8a991e8a2a.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 0x4967c3284a195874f716b9387c2b9174bc79736b4bb82bfe4b6b0b70e28b09b8. 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/BREMI8100152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x415196302dd7f1ddde61ff066ff6da260dd6712303b8a2f7c2bd4ca4b5f1672d. 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/BREMI8200107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab945b4d50bfaffc255ace5b67f9583a33e78b664da74a82ac0c7c3cf1dc8c2. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/BR03D2100182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe727875c167b0bb2b6e97b1ec595c788e6b7ddca6e46fa098161d5c11de589e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/BREMI8400076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x875d1e12756182731a91370bcb909f9c843f5268b045eae3424aff279ce025b3. 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/BREMI7900081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75600b989af5c89699da78eab6fbd8f84a518286b87053f4aa6653ca139bceb8. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:31:13Z), 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/BREMI8300564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59260ae39e877618b6eac5f21159ef458c0d1f5188dcc88f676180af5d782eae. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/BREMI8100153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5245b2f79224ab161c8da4dcc132d72a006b324031bc3367d4e0be9cc6bd69d. 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/BREMI7900492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0564bd6adee6ed6a0bf1dec06678bda472d0dcfc7828bfb09d822ab0f37aea41. 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/BREMI8400075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa666361e2b86b09070ecf6c183869a1934f39b515901f4e4864bb263023542. 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/BREMI8000495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17255932c956d7ab8a192a1dbd781aa0d06a63beda9c0becd8b841bc876d86ad. 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/BREMI8400107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1ea97bee69fb4d455532d542819d3f94f84da8f4a73fc01646e9cae756b083. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/BREMI8400756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7230b008a8946b35f13732a0bee728e89179a4d265a700499933415c9eb9e99d. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/BREMI8300599.
No Parque do Povo em Campina Grande (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04e4aac74509511dd2ae7cb1b828f81be3bcdcc52db53477b9bfe5e963f6c33. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-20T00:28:23Z), 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/BRJL22000030.
No Balanço do Forró (Canta Luiz Gonzaga)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ad83a5203a6d518865dc837dd540055f7cee17c821fac15667b939b4ad1fc3. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:43:39Z), 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/BRJL22000055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a5d2228a07a10ced572f706417372e36a7ede166a12b836c80575748ce507b. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:06:05Z), 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/BRJL22000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe05311684b63db9007fda0173bd216577462f44876694d8274aa686c381a8fa7. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/BRJL22000059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d4fd180971d04cffd74733d5e2c7e2bc4f6e5e0069e644e3818619a70ebaf6. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/BRJL22000061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7fed4acf1a85e5ec46948120b956aacab9bc53b7ba47ac6be6af0fbc4b37e35. 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/BRJL22000062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372105317dd173b4e9cd40b442f582c1d26d047c4af687abaddab5dee38e387a. 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/BRJL22000064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0600c6129365e734c910377144f8e7798420251d53b8a1e172554608cdc38c9b. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/BRJL22000066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d4f54c162b5a47d7dbb6b07698d876d39fd8e429e66d2a2ed2e8fbb7896bdb. 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/BRJL22000069.
No Balanço do Forró - Genival Lacerda Canta Luiz Gonzaga
Todas as Caras: O Forró de Seu Vavá, o Rei da Munganga, o Senador do Rojão
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fdb19faebcfcec10ee1d8fd83d331a8a46290af5b7d42a910d2b84398382157. 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/QZEQU2146592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e8156eafd5f44c98150ab58c78c05c8702438957dae92c52535d975a946a20. 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/BRJL22000009.
Minha Melodia / Tenente Bezerra / Currupio (Entre Lacerdas) [Show Minha Estrada] [Ao Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f8b2a202b45cb9b356a30d09ae9ab5694a284252317accd2c3d37ee5624c56. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:20:00Z), 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/QZEQU1914855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096480325b711ff78512cd98489de058d6afadbcf7215fa0fbed0dcab5fd070b. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZEQU1914846.
Deixa a Tanga Voar / São João do Carneirinho (Ao Vivo Show Minha Estrada) [Homenagem a Luiz Gonzaga]
Galeguim do Zói Azu / A Filha do Mané Bento / Quero Ver Meu Bem
Coletânea - O fino do fino da roça Vol.2 1980
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de1eb058bbbe28385459a91bb706cce56ebea0c4ef34e5698962a42e982a8c6. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/BXN9M2011548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5e69adc1ce849d71342bb328c771432e912a147d7e1b72507b21ba641fa39f. 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/BREMI7500015.