El Piano de Dolores y Estefanía (Rumba-Chalupa-Timba)

Recording by Petrona Martinez.

Recording identifiers

ISRC
USDY42197225
Release date of the album this recording appears on
2021-05-28
CopyrightID (CopyrightChains transaction hash)
0x4f27e6bdeb4b7017dacb013eb945384771ab8b9c14de0726541ebbebc0621079
Copyright registration time
2026-07-07T01:31:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:b5fc97f1541ca3b4e7c22fd66c5c0ffba0800d053b701c9730711f650e987521

What this proof establishes

This recording was released in 2021, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.