Concrete And Clay

Recording by Unit 4 + 2.

Recording identifiers

ISRC
NLB120600153
CopyrightID (CopyrightChains transaction hash)
0x35d46c34952e775afe257378b1a934e6d5222727dba16f0e58479b9653619426
Copyright registration time
2026-07-07T07:31:26+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:0457e47fb4243bc1b0d893d544372eca781c3e46293498aff7749a43b52fe16e

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.