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 0x7767bbacf8df0e2db8744b9890f55c7dd6dfd1487e7ec38f2cdc8fb4347023ef. 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/639306d1-c611-4b8f-86bf-032b8ea44d1a.json and https://artists.proofprofile.net/proofs/artist/639306d1-c611-4b8f-86bf-032b8ea44d1a.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 0x622328137918a082cc828b8442834dcc3015741e3e75bf5fc8b3a94160fe21ca. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR2X41950651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73e415b17e928e87f7c609bbfc3a7980a9c2c9c13fecda0ab74ae9c6e2d0090. 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/BRGRV0501439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070170a9c342c2cb6507c521b38e4ce3b8f1fd301376b7b61ecdfeae09914840. 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/BRGRV0501450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9073cb669e720187b2c5880b33dd43f7e939f385a690eb611ea63d5760b44d. 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/QZGLS1915823.
Acústico Imaginar: Walkyria Canta Bethânia
Volta por Cima / Você Nunca Me Amou - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fde4f7bdbcac8f1528f35110219f336e7025db7b4ed84f3bc1ced053eca21b5. 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/QZHZ51961250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71e029ac67d6d2e900c6a35a95420279c278d63bfdc31c6b5d551b38ab152a9. 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/QZHZ51961251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cecc4bd10548d95a5818f6e8dde22fdd3b0ea76038fcbcb05dc3d871583b5f8. 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/QZHZ51961252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2739a5e94b2b904a60761ed4d9b1aacfc96ce341410f7b2aafcd0d8113fa87. 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/QZHZ51961253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4efc69bc8a4748379e2bd87d5df2583c0f75a7c5e5ff07e362be0ef7bc1c17cc. 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/QZHZ51961254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c467cd8d4be3dd65a4a43be3799d50d5cc8805a7f40b3214385bf2da22522cd. 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/QZHZ51961255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357df7384134ffdaba4078e05054d639841010e6fb63c445631e9e1ac9c967a5. 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/QZHZ51961256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6efd0d92b04db770d3acc7ce441ed4328a6a60dd84c47d5890c99e7264d26262. 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/QZHZ51961257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90205195d9de155c50e9ea1da241fc08c3c85a7ecefe49e507f22ec9dd91485. 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/QZHZ51961258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67594d8fd7600a18cef6fa52043c35fc58a3984b1506dd2c279c89df781b39a5. 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/QZHZ51961259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b117b3e5623cd647249bb7e5be983e7b7cc0875ba7d6aa2d761ecc7181aa1c6. 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/QZHZ51961260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471b1c1ba8b49bfa3d7b4e99b927f0fc0dd79a0c1e1efa51588aaf3881b91eb6. 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/QZHZ51961261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x781f325cc2191f1f7ae2df9e2814af2f826c230843dda7ddbd505b7a8b7be452. 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/QZHZ51961262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a35e5f324119e61cebef66c5cb90a7308bb1f3d314361e4e6a2f86f465754b. 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/QZHZ51961263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469c1b90cac5a7e6b1c3c2ee8677fe8a63e130d5f77e33aaf48dc1c5eac8a925. 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/QZHZ51961264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e3334f3b59922417180ce6fe9c607d6e368acb58e2a12499236e99579c127c. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZHZ51961265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7781315011af4f334066cff7773f61ef0d933339e242f200b651031665550e0e. 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/QZHZ51961266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd04e577b07037e3626bc93ee4365edff4a6902011393217deacc0b8f5c4cab8. 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/QZHZ51961267.
Cinco Chamadas / Coração Magoado - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c66e739074c97f4904b2dced56d03047da135fe7793c34d201c42ce784b8b31. 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/QZHZ51961268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8b7c3ec6d3f9dab55f89a3aba45887e53852085e1d70da54ca50345b5403ca. 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/QZHZ51961269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d57075e782fe8eb02db55f8ef250d681ac4b5b7e6b1378cb8c769a68b2b89f. 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/QZHZ51961270.
Me Usa / Meu Tesão É Você / Teu Fogo Me Pegou - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5412452522f48ea541c45f59c5b5a0f92b021ce86700ca3967cb20c32df98d2. 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/QZHZ51961271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26f1bf3727b37b71b3c403f9382b97026dbd93f0a4f050612c07eac70f62061. 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/QZHZ51961272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c999ba068c9183c7491f20532a3d5b3bb2cfa5cfc12619395d47c2748128f3. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:49:23Z), 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/BX8ME1900345.
Walkyria Santos Única 2 - Minha História
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01e1aa6d53976b2ebbb3cbf6edc6f80636c3f9b96a886402db94d7c0caaa6b6. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZTVM2132416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x212cc4db5f35022757c819a21596ba87efca412864a626ca2641bde22edf66fa. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZTVM2132411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b84af37952e457497eecc572c83bea6ac3f2e07dce318c1a60bbe31936f46ed. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/QZTVM2132412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e52c6bbe8d4184818fd78bbbcd6f719f1843bfdc9de00b59025cb37f8aa2e7. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:31:22Z), 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/BCVAK2100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ecb3d691e0fc26a130eab10b5b634b728f2d7a641afffe33c3331ffc52f4ef. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/BKVSB2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a34aaaf1be656422ac4a9b62cbf250d82b5043dec8f309469447ae4bbb110c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BKVSB2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21d2e6effd7efc7cb0266b2c7b24139b4b2bafeaee95de77187080743caa8b6. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/BKVSB2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294faa999edd7ca943ef4797cadca2be77b972b87aaf9211b9e02af005e451ed. 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/BKVSB2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7e01fff6e6a1eaf4081108ae84add85a514db6d0db173ac5bd0463dbaef7fc. 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/BKVSB2300010.
Wal Com Vida Daniel Diau: Os Corações Não São Iguais / Um Bom Perdedor / Amanhã Talvez / Um Novo Amor / Chuva Fina / Se Tu Não Estás
Wal Com Vida Batista Lima: A Noite Mais Linda / Deu Medo / Custe o Que Custar / Dois / Ele / Transas
Sacode Inesquecível - Ao Vivo em Fortaleza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d4acbd41ee4751705e6fe1e305df681ed9260dc34ee5c4047bee31fbe7d181. 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/BCSUV2400966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d4acbd41ee4751705e6fe1e305df681ed9260dc34ee5c4047bee31fbe7d181. 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/BCSUV2400966.