Cauby Peixoto (10 February 1931 – 15 May 2016) was a Brazilian singer, whose career lasted from the late 1940s until his death in 2016. He is known for his deep voice and extravagant mannerisms and
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 0x55ef487b7dd5adea847c7dad08f80b5749eda735b68af714ef688343eff38590. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/642bc880-1cc4-458c-a5c9-b3b16d423166.json and https://artists.proofprofile.net/proofs/artist/642bc880-1cc4-458c-a5c9-b3b16d423166.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Rock 'n' Roll Em Copacabana / Amor Verdadeiro (True Love)
Volare (Nel Blu Dipinto Di Blu) / Triste Paixão
Mack The Knife / A Vila da Santa Bernadete
Canção de Sentir Saudade / Perdão para Dois
A Noiva (La Novia) / Muito Além (Al Di La)
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 0x767592f0134dbc8d984d5e9283262e2a34a8173be1b051dbc9c606c7f14ea723. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/BRBMG6100004.
O Poeta Chorou (Y el Poeta Lloro) / Aleli
Enamorada / E os Céus Choraram (and The Heavens Cried)
Voltarei de Joelhos (In Ginocchio Da Te) / Depois de Ti
Obrigado Querida / Se Acaso Houver Adeus
O Sol Voltou (Airport Love Theme) / Gente Humilde
Cigano do Amor (Il Cuore È Uno Zingaro) / Solidão (Por Quien Llora Soledad)
Ria de Mim/ Então Tá/ Tua Presença/ Tortura - EP
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d47e60b6bb1dd4fc42ad05f05a1a386d2a4be519f9c0fdc63eae33138ead56a. 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/BRSME7300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3771d2291274d49de7aaddab95bc71636d29e9710977ac9809a151ea5a1ba9e9. 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/BRMAX1403120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e6618ec50ebcfa5960854877fb04f3e2a69b792c168ea064b286e7ecccbcba7. 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/BRMAX1403121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d6883ba8c5525c31bdecf712691413b5275e5e72c093db23b145dfd31332ce. 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/BRMAX1403122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf39f2aaadd5f5d3f6dec68d4d746bb80da0d940dc532fdf8171853d6661099. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/BRMAX1403123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55fe6a8756aa2ff3b55439ec62dd5a1921ba9ec15e61cd8e39306723cacea281. 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/BRMAX1403126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723f693f16f680b2903d5b105dc8681c380ce1d6ad87e895036ada2da7da9fe5. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/BRMAX1403127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155e2ffad9ad16ecb33a9ea826039a3869862b4278210732dfc0099b057394ba. 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/BRMAX1403128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbdd59fe0d6ff26e87f8ac15af6dd0ad9612c2d5cd9f6020fda547647ef96c79. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/BRMAX1403129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9efece1ddb90c020832cf5d5389aacc1993c6ff2a3d51354de04b4759a2a2c0d. 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/BRMAX1403130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318d994e546101800175be20f134b7d08783458def8d84a6691e4ad419447fc8. 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/BRMAX1403134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c8cad80b5c010e44e9609346ea8cff99a5566c6cf4d1eafc1741d05635b701b. 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/BRMAX1403140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe9f9e9594eebdb7b4a27264041a4b15a0599fe3dfa06202959a80d0d8a7156. 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/BRBMG9200031.
Eternamente Cauby Peixoto - 55 Anos de Carreira (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0484c9b3bece0a79b2705f849593edfa3ddc964954107f8fb77177e77c95f5e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BRECI1100123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf819c2c1451498a74de99339b09924197fac34d7bb575f95dd43f0e30f325a79. 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/BRECI1100125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7663ad6b75099fce5b63c5f7f9b3e60ab6f3cd8d8f924e4bf0895f319a2e2aa. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BRECI1100126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0fd269e2fc59491df4eb4950f4699ea686e66b0ddabe4f3a752ac1cbd4f125. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BRECI1100127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59b085619129f7b1f2cd50ad219edbc4f8fd0c7e7e5f7c902cd2638b53986c8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRECI1100130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb607c9e645f001d8a5cee4b571c2efcc314252b8f138a06083270dd43c88adfe. 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/BRECI1100131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b414b539194c93a66a4ff24b43b72df12b21cd7aafa492cca4ce382033bfaa. 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/BRECI1100132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd65f34af9991d06919155342e8a8bacf66f11b1e0a928811f29cb42fdb32d6. 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/BRECI1100133.
A Perola e o Rubi / Tarde Fria - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb54d4add4df0b7724fbc3c7d68a299c0bdee48bbd2a3e0be259570ad843ff92. 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/BRECI1100135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6e630388c64b44ced0b6454a0dba35e5a908baa5868675c89c565318e574c6. 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/US7VG1592304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b6ee72a0e07ba264a32ff8806ccc392ebf72fddc0ae57b97e1aa74f55999df. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/US7VG1592312.
Cauby Peixoto: Ao Vivo (Gravado no Teatro Guararapes em Recife-PE)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1cfdb637b4125e64e38015ebeaebc836d6d2dcb28f68d37eb664d25c5d7c99. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/US7VG1592292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea69d253f68cf0d8c01a22d1c883d76b836f3e763cd8a483e3f10008db3cafb. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:52:38Z), 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/BRPUI1500103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f6598c074858c47435c57cb1d0369bd9bfa6ddc5a6b32af78f270568f7f00b. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/BRPUI1500104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad4685cab730d08a564eafcdebb3a6bebe8e537fae016853e7b57dc44000bcd. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/BRPUI1500107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cbc6107d9df74434b336f16d431c08925d95b7a0c4f05ca7619bc3fb49103df. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/BRPUI1500109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc1d4814f076e6ac800645d773df05240e2a2d2c14124b9b1c901f43bb9fb83. 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/BRPUI1500111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a991ebdd09ddb0f667e4d845625cdfde0117cf08fdd7d25e8df243a7e6276ab. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/PL66V2201545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff2a1616314a34290f164b8f4c1b43dd5c8d3a8c9dfd3439f4bc58c06f9a9b3. 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/QZYFZ2506116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f89347719f2f84147914f80ad5a31f577cd766819abe32973d5312a94113b1. 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/QZYFZ2506124.
Seu Amigo Cauby - Vintage Brazilian Romance
As Grandes Décadas Da Música Popular Brasileira
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837ccc619df7e83f87035b1be1b8223adfd5a3e3f8f87a2df1a9b86b1bdc2e07. 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/BRBMG9200269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb837613c5ef8cfc8d7c65fd97ed6be0ac7d7c65aaa7efb9b95eacf5a3fcdcd3c. 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/BRECI1200110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4d6c6a22c0b4460f503f29b5100357dba1f6f90a3dd3f89bbea7806845a68f. 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/BRSME8500118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d744fa264c11352b1ccfac02c609ede5a0f73ff1fd0237cbf62909bacf463c2. 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/BXTOQ1700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07241d46f70894cf30b1723f93f8127c5d9928ac42a58e88c7480459ad54bc1d. 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/BRZ9C1400133.
Ninguém é de Ninguém / A Noiva (La Novia) (feat. Cauby Peixoto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fcf49307088138ad5b7c80f4be7bf83a1bcba50353e49027b1fcae9388d19e4. 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/BRSME9900133.
100 Anos de Música Popular Brasileira Vol: 4 (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f6eafcf6ec92a60abb4958a596344762c57798ece93ccaa6d2df9e5ec20684. 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/BRNIK3000097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf823ecafe861dd2acf24c79bbe52f3d1b379eb551f42eb02167d23bb36e59646. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/BRBMG5600068.
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