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 0xca1fdd3fb2b5c8d319c6335b63d92993181bcfd09719a2b1fc02a010176f4c46. 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/a85d2250-bb82-4bc6-a680-361c2133fb28.json and https://artists.proofprofile.net/proofs/artist/a85d2250-bb82-4bc6-a680-361c2133fb28.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Apesar de Mim (Vineyard Piratininga) [Ao Vivo]
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 0xcc83992f1f07ffa10630fd2c9b7a713a437f62deede18025227351bc96ab3b14. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/BXMRW1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32084b3a83cac32a85d0e4d874fdd559395c4fb6ee4f878f06bf5493750918a1. 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/BXMRW1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e05981e51484a7eb82729a1601f355f2f19b46c94344660274600731df9ac0. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/BXMRW1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1dd358ae13d6004f97af8de3a71c3178109bbdab0a23a7d23e954313489e67. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:49:56Z), 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/BXMRW1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5348b26aa56ce92b224962f1fa3e016b766f575f39f330ef2593f7a0911db3e. 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/BXMRW1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43951d3490355bf4ebd4a2b15687b71dd9da6d68fe3681e81c6f3337adb2dea. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/BXMRW1700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f6ef86cd0348ebf6f5b2c6d8e4043fd17ad23263ef79bd8cddaaad9f1068de. 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/BXMRW1700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4943a2901474981b7e2278b63adc4f0fec826984def77c3a82b52f5b2246ca8. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/BXMRW1700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e76b1008197159812d0733fe61e0afb7fe7c82152f0324a5be0a0d52d9d6b8. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/BXMRW1700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b55100b17e201582177b8d40eea4299647c23237d398852dbf793f0f550038. 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/BXMRW1700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14da78597f71b29d6482e1532d7e308b1090fa03c6ddb96c147daa379dcdd61. 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/BCCBR2400006.