Mazurca en Sol

Recording by Francisco Tárrega.

Recording identifiers

ISRC
DEVU51807462
CopyrightID (CopyrightChains transaction hash)
0xe9f4979c3b81d74898e634a9deb99992cee7a639c9a9b865328fb82031856424
Copyright registration time
2026-07-06T07:37:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T18:39:05Z
Bitcoin block
957073
Canonical record hash
sha256:6fb0f58a0a9465efcc0d920a2e1074a6b0b817043be0eeb76d0d9070cfef56bd

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.