Tjugovisan [1]

Recording by Adolf Fredriks Musikklasser.

Recording identifiers

ISRC
SEAEB2164230
CopyrightID (CopyrightChains transaction hash)
0x884647e7ca072d18d62f8b0efa1ae790a7fae686dc6997bc9e72d992b53dc066
Copyright registration time
2026-08-01T03:16:08+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-08-01T03:41:24Z
Bitcoin block
960503
Canonical record hash
sha256:65ea24918bdf9ae762ba2d5c9012d6a91d8b8c59641217a8cddb4533968ea4af

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.