Sad Smiley

Recording by Roman Kouder.

Recording identifiers

ISRC
FRUM71900204
CopyrightID (CopyrightChains transaction hash)
0x80d461f4d3d6722860a82cd637854994a91f1938fb9bd7c7c6ae2f08f4119371
Copyright registration time
2026-07-07T17:04:31+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:a3dc685527494b5466b568cd540108b2f32cb9b806e6a3f293f0e68bcf8b65ce

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.