Op og ned

Recording by Hr. Skæg.

Recording identifiers

ISRC
DKMFC1200112
CopyrightID (CopyrightChains transaction hash)
0xf7d6654f20504cb956bdbb57523c32d1d89e1d0fca93281347e4fe1e8943a98e
Copyright registration time
2026-07-06T09:42:42+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T14:41:13Z
Bitcoin block
957050
Canonical record hash
sha256:9aed35e8432d57921f455643b994c4a25c7fb95334814f6a2c362898b78cac12

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.