Return to Medellín

Recording by Zbigniew Preisner.

Recording identifiers

ISRC
PLX352100020
CopyrightID (CopyrightChains transaction hash)
0x7ffabb8ac3c7d7fa24a8d02b663c4cbe810af0a399caa1984d463da00110697c
Copyright registration time
2026-07-31T11:17:37+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T12:24:41Z
Bitcoin block
960397
Canonical record hash
sha256:da2c9acbb469025c55323d96fb543cfaaf3ce4f45caae9c3b7419744ca5c6299

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.