I've Heard - version

Recording by Dag Nasty.

Recording identifiers

ISRC
US35U1016802
Release date of the album this recording appears on
2010-10-19
CopyrightID (CopyrightChains transaction hash)
0x61cb86201c1d55f0d954b8b762ec0551740e32500613922e431cf111185e3d86
Copyright registration time
2026-07-06T18:47:34+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:097945f8c7225304ea541e8cb859dacfa6e35c39564536d91539e593da066aa2

What this proof establishes

This recording was released in 2010, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.