Estudio de velocidad

Recording by Francisco Tárrega.

Recording identifiers

ISRC
DEF058204540
CopyrightID (CopyrightChains transaction hash)
0x296d34ff9de561cfabbd4196da9461fbd0e3c5be0549f305f43acc4ba4e5eff2
Copyright registration time
2026-07-07T00:39:45+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:2dc4f2f1f0ddae566c57f60b0d3b1d7738459b935bf96e98f88f75f1dd58756c

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.