El columpio

Recording by Francisco Tárrega.

Recording identifiers

ISRC
NLY331501577
CopyrightID (CopyrightChains transaction hash)
0x284c08443f00c1f7b69fa6e684f84c49f9b17d7ef18895a4302f1b5274bf311f
Copyright registration time
2026-06-19T13:17:15+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:126e3936b7a374c2282043d87cef806a337034876d5458ff35c00b0af72cb3c3

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.