Hammers

Recording by Nils Frahm.

Recording identifiers

ISRC
GBWZD1406010
CopyrightID (CopyrightChains transaction hash)
0xa9588cc1623c8e6a0d3231538ecce49ca8f87f8f1865f39aa89a75f2abc967d3
Copyright registration time
2026-07-31T07:21:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T08:26:41Z
Bitcoin block
960368
Canonical record hash
sha256:c4c8a4eb484a1936726a1e11fb5b8e1b2818b5f04b0f738d24a0d489d8488c2d

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.