Polka Envenenada

Recording identifiers

ISRC

ES5700501011

Release date of the album this recording appears on

1985-03-07

CopyrightID (CopyrightChains transaction hash)

0xe4f7d5a4a5f8aa81b28b77f91fe54532a4a3b3a400c37683880cd35e76806455

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T03:35:13Z

Bitcoin block

960203

Canonical record hash

sha256:264dfe23793ce0648e7165cdeb2b719a4ae3e26fcbd2e49e3ee95ab5403cb8c4

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC ES5700501011

What this proof establishes

This recording was released in 1985, 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.