Estudio La Mariposa

Recording by Francisco Tárrega.

Recording identifiers

ISRC
USL4Q2059804
CopyrightID (CopyrightChains transaction hash)
0xe4a19560404e3a1c1521a5ff6d5484bff7395257e151facd5f16f84135d7bd29
Copyright registration time
2026-06-25T23:52:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:aaeab15d1932d4463edc4c0401fc10b7e643e0e23aa2647545b970c2f5b6f427

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.