Mariachi Los Cardenales De Pepe Esquivel
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 0x28a8b8b6f0c22d031d729ceaf489291bcd917a5232cfbd9ed69d9d31ce23d8f1. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e48292a-1c82-4aec-a0bf-ad5b327af4d5.json and https://artists.proofprofile.net/proofs/artist/7e48292a-1c82-4aec-a0bf-ad5b327af4d5.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 0x16ee679bfe6a819d0edc775fd5189d5bf3cb484414b1bc1f0f0cb1b62bb7f8d6. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/MXF367700383.
Ricas Cumbias Con Mariachi Los Cardenales De Pepe Esquivel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5cafcd95457921fe001d481f8c26064195af48c7e02ec283f6cebb49de39365. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/MXF367700363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6081a8b79c2dcaea347ca2f8100ac03f2b92f15a616442d91181c94db74f4df6. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/MXF367700361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af45286864f804ae24e5bdd27e137ee088dc4aaa77268ba2a18547d440cd88d. 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/MXF367700359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c35d2b99692b8768363176dfc39b80fbd589a87151fbcb58bccebb3b79bda54. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:32:26Z), 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/MXF367700358.
Valses Inmortales Con Mariachi Los Cardenales De Pepe Esquivel
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