Blackjack

Recording by Switch - Lock Up.

Recording identifiers

ISRC
TCACC1442588
CopyrightID (CopyrightChains transaction hash)
0xbd407d00ec435199455eb99b732f1abacd40f9fe8556fd6333c94fa653446353
Copyright registration time
2026-06-18T04:50:44+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:6fe72bdba163d3016ea125684809e517c52166211e3d79478f7edb1c4d4a7913

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.