Estudio sobre una sonatina de alard

Recording by Francisco Tárrega.

Recording identifiers

ISRC
NLY331501615
CopyrightID (CopyrightChains transaction hash)
0x23b6e078ed33375374d08f37f1f70646f7b569e5d425c028a3f16b08da937763
Copyright registration time
2026-06-19T13:20:46+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:481acd374d609f30721d25a0c613444d93c980b6476c04c9df5fd34e98e7472a

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.