Combine Advisory

Recording by Valve.

Recording identifiers

ISRC
QM5WW1500773
CopyrightID (CopyrightChains transaction hash)
0x72b694f356acedb13a31ab8185715f9a17f8b27f6d7a7831d30685c3c80260d1
Copyright registration time
2026-06-28T05:02:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T16:51:38Z
Bitcoin block
956375
Canonical record hash
sha256:7e3a4b3cf71c6157170ee73fcb742f70f07540c2a75728dff73b216eeeec9f63

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.