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 0x199304855afb2ed9c07931983efa1da637c291d09a92229a63019ff487fbff61. 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/d784cdfd-c069-481f-979c-25b905eda838.json and https://artists.proofprofile.net/proofs/artist/d784cdfd-c069-481f-979c-25b905eda838.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 0x65a3797239392e474336371d17ae6797e13c228edf73b63aa04410f91aaae9bf. 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/QZ5AB2000149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52b59af59d8a6d6b5bce5709db500595d41ba43ec091b50c75824f8cfb8c158. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZ5AB2000150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32df8f0c4845780909820d3208c1beddb39c5477260a65aa05bc75d573c84cd8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:08:18Z), 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/QZ5AB2000151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76bfc2096299f2f702574ceb6d5b64eba270099be4184824fec4f8b05dcd2181. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZ5AB2000152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16cf0baa488461069b17d5ecf95deae7e816f62f1a4bf196fbc0661dedb87dfc. 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/QZ5AB2000158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0827642a1349f38bca714ccf71f8c365f1bdbb180fab10a3140a2ab0e4702a4. 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/QZ5AB2000161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7c05d9c942412cc9022ce48bc8b23e7617b72ab0f171def829b6b75d313b33. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZ5AB2000162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x258761f02fa2a878c4eead095afe82eaa3a6ce9460ea7aa6d4d45338f4fe569e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZ5AB2000163.
Samba de Cosme no Estúdio Showlivre (Ao Vivo)
Comigo Fechado / Portas no Meu Coração - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccbcbf2ce28747d8aa808af1d31815c7be0ab39bd9853c09518597b5dae1fb1e. 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/ES71G1631703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7c7c009c2e85c732061e5c6ef3442d7f4c192709fcdbbd84ca854d273d5890. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T17:04:38Z), 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/ES71G1631700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8f308bb716450d22344b9f7e7117ceeb89a0ad13fe1c463e7a3432256a929c. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/ES71G1631701.
Me Assume ou Me Esquece / Até Que Durou / Eu Juro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ebce438bd9f613f5f596fb079f5a3a82a7265ef4e29c7d5791080cf411a05e. 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/QZGLM2480824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860bfdfbfe1a5bc13b7d077ad436d59d04e176fc5443253458584b517119d293. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZW9K2326424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad80719477ddef754b933f31ca95e86a6fe2119ad95b3f80ab9beb035dfb75e. 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/BKGC62300073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb5e0c26e5747468474078019c0aa892cfa5cadee0f767e296fc89bb5a32f37. 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/QZNJW2381099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d77f1f398da1502eeb2a7f5106121cac758d97a0be5423d06a144a9272283d0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZNJW2381100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880376c864bb73865c8e381b48dc3287a5491181ee827ddc358a483e841c639c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZNJW2381101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84707ca951a60367d3f1409f93ce37fcdeda23b6601b35e3dbc259d3d0122050. 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/BKGWG2300001.
Mel na Boca / Meiguice Descarada / Novos Tempos (Ao Vivo)
Mel na Boca / Meiguice Descarada / Novos Tempos - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069fa7ad67c8e31b6e36988d9b0a2a6fca8af3744dd79c11f4d9c8b2d0667163. 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/QZGLS2207377.
Eu Não Vou / Dona de Mim / Bom (Ao Vivo)
Eu Não Vou / Dona de Mim / Bom - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0157fd8b03e0f4c518b0fcb7daefd42c2f7169182b6a9ffe28e432ef9cd244a9. 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/QZGLS2207429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe37aa1391f6211060170df04e72060a90643a0a881091723cc35decd18386af. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZGLS2207282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf69587da7ca80c2e768dae3638887d49aec1b48e7ee499866affbd429f47a0f2. 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/US7VG2277007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68232fccab9723817a51b29eb3806310d1b13cf7582c97e27cc167e385457e71. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US7VG2298120.
Quando a Chuva Passar / Amanhã / Depois do Amor (Ao Vivo)
Quando a Chuva Passar / Amanhã / Depois do Amor - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cda9e1dbe57262ea97338bb2011961c2448c4c07f164f2766e9191315b9b20e. 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/US7VG2225809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d7f2ffd583f6283830d54b54f494c18cb17e248272a9d29c83fa6524f3ef82. 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/QZTVM2157855.
Quero Ser Feliz Também / Ouvi Dizer / Meu Talismã (Ao Vivo)
Quero Ser Feliz Também / Ouvi Dizer / Meu Talismã - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb470c7c8869913440e17ee6f99f72b9b3826ad2aadc039d079a6f68ee2cddfc. 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/QZTPX2199428.
Meu Nome É Favela / Bom Ambiente (Ao Vivo)
Meu Nome É Favela / Bom Ambiente - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41dfdc7e3bca72c8ba149f02e54f113cf931df00888567b343ca6fc38c8af265. 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/QZTPX2122254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d49b62cf3c83e7d1be98d0632b9847b12dd69355705d3971c3437e4b13986b6. 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/QZ5AB1807653.
Samba de Cosme no #ShowlivreDay+ (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a9cc08d69bb719390a2d747b23132a7af8cceed399750271a6a653a2ae0b0f. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/BRRTF2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a5e5780392df631401b7652b5d6bdd20a86f0aa0d953805e2157ae10c98331. 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/BRRTF2500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e90ee86d5fc14c5a858c92d2aec64794df980bd500bed6eaed61b0cf51432df. 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/BRRTF2500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a9cc08d69bb719390a2d747b23132a7af8cceed399750271a6a653a2ae0b0f. 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/BRRTF2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be6bb6f57fed61a93d63a980bfafb81682dd4b56a914175b5928c64743f2958. 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/BRRTF2400057.