1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x42de5c4561f9105387fe63c8b281b09dfcb422988bbd6f09e687300a63a974a6. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/521faab2-eb47-48f1-9aa2-8ac1fad36109.json and https://artists.proofprofile.net/proofs/artist/521faab2-eb47-48f1-9aa2-8ac1fad36109.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Amizade, Lealdade e Igualdade 2011 - Ao Vivo
Amizade, Lealdade e Igualdade 2018 - 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 → block OTSBitcoinBlock must exist at that height 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 0xa053ba7ce2c39cb86115aa0c5bae33fe143dde8616116015ece2605a708eb396. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZ5AB2119928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca36a7caa667fe8996a8568b3a5edca778d3c244df0050cd8af57673b6ee331. 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/US7VG1469824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff8216f67e5a4662b94fe5e1d92673ec9295f0cd088199fabfc65022426fcf6f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US7VG1469829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa1bfb2fbc6e43208b37cf4861b6febc47759befd27c75dccbfc0e05f05efdee. 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/US7VG1469839.
En Sudamerica Se Preserva La Escena, Vol.2