Det var ein gong / Once Upon a Time

Recording by Sigmund Groven.

Recording identifiers

ISRC
NOFGG1293300
CopyrightID (CopyrightChains transaction hash)
0x56f517e498c011ea0794f6c7ddd3b8195c8cd8a40fb7773fd539835f3f65067b
Copyright registration time
2026-07-06T08:39:04+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T13:52:39Z
Bitcoin block
957043
Canonical record hash
sha256:770b5fa6eee3a9327763bf7a54087ec4649163814c97cc9cc5556e87304f69be

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.