Butterfly Mushroom

Recording by Peter Brötzmann.

Recording identifiers

ISRC
ATD412308002
CopyrightID (CopyrightChains transaction hash)
0xf02b81bc97e36dc3f74bc1fe77ee786772a6218ec08169f6c78d26b9ac5ef2db
Copyright registration time
2026-07-31T20:53:27+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T21:25:57Z
Bitcoin block
960468
Canonical record hash
sha256:4a55756112a94a6e4388baf7a9cfa27fad1bb3792d5806992d995d3fe03fa4f8

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.