I Said What I Said

Recording by Def Sound.

Recording identifiers

ISRC
USL4R2015816
CopyrightID (CopyrightChains transaction hash)
0x48c87e7404b74f62db70a3dc82868cf12ab8d6db28b2c4a1975c2a921f62777b
Copyright registration time
2026-06-27T09:45:52+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:c4e573ec7220cbee3320d5cd7b86ba857c72b7c519df04b3dc4850fd91472faf

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.