Alex Otaola (Alejandro Otaola) is a rock and jazz rock musician from the Mexican capital, Mexico City. During his career he has been a member of numerous bands such as Santa Sabina, La Barranca San Pa
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149b4b9a27cd63c42c055f6ce685ba2622962796347960bd413482885102ab76. Chain 2 (Bitcoin): anchored in block 953972 (2026-06-16T16:31:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2a32d09e-c745-4ebb-ba8e-31b771d4a8f5.json and https://artists.proofprofile.net/proofs/artist/2a32d09e-c745-4ebb-ba8e-31b771d4a8f5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
El Hombre de la Cámara (Original Motion Picture Soundtrack)
Arillo de hombre muerto (Original Motion Picture Soundtrack)
Desaparecer por completo (Original Motion Picture Soundtrack)
Selva trágica (Original Motion Picture Soundtrack)
Naco Es Chido - la Verdadera Historia de Botellita de Jerez-
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5868f4304f7322f5eff8274652acfb1aad2eb2c25d8bd1daf50f147c5df9b4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/MXF601201001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18ad26508eb8aa2b39e89ee01cbfc672e05218e3b603a17782b89c42cc60507. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USHM82148104.