Spontan

Recording by Michał Szczygieł.

Recording identifiers

ISRC
PLUM72000430
CopyrightID (CopyrightChains transaction hash)
0x319c355cfff8e4cc44149d4bdc24109eb1bb5f8f45536f02d0395be58181391c
Copyright registration time
2026-07-31T07:28:31+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T08:26:41Z
Bitcoin block
960368
Canonical record hash
sha256:c808018c61ba902474e5c1c13be75da33e6c0f4c380845f337d4f883f827d0cf

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.