Barrier

Recording by Peter Brötzmann.

Recording identifiers

ISRC
GBAWA9870217
CopyrightID (CopyrightChains transaction hash)
0x611c61561b748c9eb99bc284d34c49dd3ded8dbef7e0e3ab1e7b850c4b8fc6c2
Copyright registration time
2026-07-07T20:36:52+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:39:04Z
Bitcoin block
957122
Canonical record hash
sha256:779003ce815f6c1e1c44316882fd2454cf47f2e705452e1536b007be83533990

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.