Si Tuviera Sombrero

Recording by Calibre 50.

Recording identifiers

ISRC
QM2EJ2100846
CopyrightID (CopyrightChains transaction hash)
0x196f8609b133fab0ae1f686fa5b0d5b0d4f7549c995c748481d9e90fd9eb4b77
Copyright registration time
2026-06-10T16:07:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:2e59ceaaad878a0812184a0f7603deefee4e04e3fb15605494c666640830a893

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.