El Columpio

Recording by Francisco Tárrega.

Recording identifiers

ISRC
USHM92408728
CopyrightID (CopyrightChains transaction hash)
0xe46e29034f45d41eeff3aa9ade73ff3d0e0cecfbfec60cf80d11527489f2cfc5
Copyright registration time
2026-07-07T15:32:50+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:91a953aa637ffe481eb74ccb17868759e3184481d9cf66842213be4e67fddde7

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.