Rosita (Polka)

Recording by Francisco Tárrega.

Recording identifiers

ISRC
ES71G1302997
CopyrightID (CopyrightChains transaction hash)
0x621e0b5101feafa7a1e2c063f5a30dd43ca2755c738a7e1452df756c330af639
Copyright registration time
2026-06-19T13:53:48+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:2bca6f8265d3fb69bdcbcb336c1b9212fdeb26c7b4fc12e5fe7a22fc62e1888a

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.