No. 3, Marieta

Recording by Francisco Tárrega.

Recording identifiers

ISRC
HKI199201220
CopyrightID (CopyrightChains transaction hash)
0x78b286417a51f905b68b3e5e9db0a4ec4757d25268d6bba25a50be6f0399bc04
Copyright registration time
2026-06-22T21:53:50+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:20673889571dfa44a21f2874fd192d3b980d5c7584643113760839a90000705e

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.