El Ingeniero

Recording by Calibre 50.

Recording identifiers

ISRC
QM2EJ1500188
CopyrightID (CopyrightChains transaction hash)
0x6d01ce6932089f97bef0e4f75987925790d4da74ca520d5f5e1206b6f186c11d
Copyright registration time
2026-06-01T21:34:41+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:69281fa8fe622a59a5005477df4fdc4cba3b097c663ab009249f182649f4bff9

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.