So I Buy

Recording by Polar Bear Club.

Recording identifiers

ISRC
USEK71322203
CopyrightID (CopyrightChains transaction hash)
0x5361121dec88064ef38e7f7e90a36ee126efd442852e225923bd95cbaabef26e
Copyright registration time
2026-06-26T10:05:37+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:e2c2dc7a51ae54f1fc824f5053f17e7bf4af18ce1899f11482c7576df399e9ae

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.