Estudio sobre un tema de la traviata de Verdi

Recording by Francisco Tárrega.

Recording identifiers

ISRC
NLY331501617
CopyrightID (CopyrightChains transaction hash)
0x52b03f92b6ac816fdef91efab8d4a5141080d80a0ad0152a7d78d8abc6afac29
Copyright registration time
2026-06-27T09:35:11+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:0625d30f58afea5bf744d609e673f7bb06186ea353bc65b8793f2426ca02264c

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.