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 0xb4b46d587d814d0e602bacaa309672b39c31650c3202c06b15239c037b43320e. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b8acea8d-b318-4b3e-8c29-c5aa082af8c1.json and https://artists.proofprofile.net/proofs/artist/b8acea8d-b318-4b3e-8c29-c5aa082af8c1.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 0x87c38a570716346ab2cc8ee215e9eb907ed6dbc6d61e3f2c7624d409f1767e93. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZEQU2053866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18fbae0d3fa49062d66b267d8436d9d801bf00f0a049340efdd7fea40dd9f5d. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:57:18Z), 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/QZEQU2053867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ede51aaff137186302fdd2041d955aeeb48becb3ad25f65dc44f589c7e62ee. 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/QZEQU2053872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1424b357a7f0960bf807b27c904f8a50ddb968497037f82ac815599d95c1af. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-20T00:22:01Z), 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/QZEQU2053875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e04bfadd783d225c7f6894c188784fbc586879da8de25396be2a06b8a9c1bc1. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T14:42:09Z), 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/QZEQU2053877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be7e00d5e6b6b25dea83a462f8b1c18530f5c073dfc7cbf83f92bdf16f83187. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:47:59Z), 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/QZEQU2053847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4dda77b93e9954873a9eb375fceada2315f06d4b8d7beac754b3e55fc3eeff8. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZEQU2053850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d69ef213f48d021b56cb8b846b2d24eb6f0fdd94ffaad1255e9ddd32c3bdbfc. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZEQU2053854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5c6b59c025fd6a213a87a4e1b009ae7e2199d463ab6f4107c0c6b12f7784cce. 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/QZEQU2053829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1192029f1f31ecdc8e21b5e1a21be53b6203abd0a14b38eb7054ccdabcda2963. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:15:49Z), 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/QZEQU2053836.
Ao Vivo no Mega Show Predileto em Bom Jesus da Lapa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ddcae61bd3f25ff200ee3fa79a626054085daac260ccb8bc006bf0b07ae8aa4. 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/QZEQU2053793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d652baceae03e6ac2967b8d9b0718e5c76e563b6e504d7ae0fc7a7ef27a33f. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZEQU2053794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ce94aa95ef4f5d969fdbd59ec232b41586bd9a2cb8338d3b100d67bc720e2f. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:42:25Z), 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/QZEQU2053796.
Forró do Rancho (Ao Vivo em Vitória da Conquista, BA)
O Vaqueiro Cantador: No Buteco (Ao Vivo)
O Vaqueiro Cantador (Ao Vivo em Guanambí, BA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd1a7d460132f4d05c40e7777b8b9e8e13ebdb8f0f5468956f5fb4131ae96cff. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/BXKN32100065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3dad08f79ae71bc2227a0a499e2d4df2c596300e8e865260dbd745f1b691307. 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/BXKN32400023.