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 0x6d59d8f035be0d3df0ca779ab5177a02bfc6d46daacb2b5ea1ae56f9ed0e9ab3. 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/d6c0a6b0-3dfc-499a-bd64-a01f68a645e3.json and https://artists.proofprofile.net/proofs/artist/d6c0a6b0-3dfc-499a-bd64-a01f68a645e3.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 0x881d89acd332727cd12bec9eac1cc12e87033eaad259bdda2f107faef5d0e6cc. 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/BRDEP0400106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6753be5dc3f290d561e7cecc1f392535cff3146d78421a46405792e3a8d9a2. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/BRDEP0400108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabdd45a8187aed58dedac24670c356468846fa72e822b207137ee68220d77ca2. 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/BRDEP0400110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff50b62db7ab4f3e6b70649e4d83fd078bcef72a00479f85277e2edc833a7b7. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T03:04:46Z), 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/BRDEP0600374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f852e14788222176b74043939e7afe9e89d86ce9eb636777a7b1c25f024eca. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/BRDEP0600372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b48cef773b1d6c340e21df3df6881c19fa8c2dd53371c43f57e5c33d7ad51a7. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/BRDEP0600376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eefb4dc0cc6d81794b382d755352e9995864e9fd4195593164fffcf59fd8b69. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/BRDEP0600378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca8a5905977bc37d911c8077cf531b9382a2232b392e86fc60986fd0f51d240. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/BRDEP0600383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6dc5f68435b4e32a2b99cf90368d6b44c9c2d59d4b2333695d924e71e6763f. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:51:05Z), 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/BRDEP0600384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a63f925cf163ef7abacd740abc269b5469d739faa200d9fd1299e7c0adc2d7a. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZGLM1975456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6eee8cc6ef1084fa5cbb1db789d0425638002e0e30d1abe61cfbb31521006d. 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/QZHZ41940146.
Alô Sou Eu / Duvido / Contratempo - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe47ef0fe88ea3b9c1fc7b2eebabe42235498a5e4fd8b9910a92e79cb793b194f. 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/QZHZ41940147.
Ainda É Cedo pra Dizer Bye Bye / Madrugada / Para de Pirraça - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f603553b63ec20c6e97d7510b36eba44956028fb67f371f0dbbf30d038d56d. 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/QZHZ41940148.
Ainda É Cedo pra Dizer Bye Bye / Madrugada / Para de Pirraça (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f4370a0d39fd1188de87dbb2f05712eddfe9d59e14f2da4439faf4da1a0876. 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/QZW9K2379459.