In Cartagena

Recording by Zbigniew Preisner.

Recording identifiers

ISRC
PLX352100025
CopyrightID (CopyrightChains transaction hash)
0x0225a8f6c13fad4b30bf66681f2cb9d73f962b84ca68c7daa5888d611c04ee3f
Copyright registration time
2026-07-31T19:59:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T20:22:46Z
Bitcoin block
960459
Canonical record hash
sha256:47eab24a4d07f7119cf147ca42e53df19bb295481ea51c2f6033cf123b5711e3

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.