Tvivl

Recording by Christian Balvig.

Recording identifiers

ISRC
QMBZ92054129
CopyrightID (CopyrightChains transaction hash)
0xc2bf8b184cef75d9dec54b5d6184bf64fcc7c0d3354cf9cda6eecf5500760b06
Copyright registration time
2026-07-06T07:23:10+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T13:25:45Z
Bitcoin block
957041
Canonical record hash
sha256:326150ed43d1c529cbffeaeaa284fed0aa25679009ee036f1130b6ebee4111f2

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.