Marknadsvalsen

Recording by Åke Grönberg.

Recording identifiers

ISRC
SEUM70601336
CopyrightID (CopyrightChains transaction hash)
0xd1dd703950afc45f282d7888c0aea429fc075c634e0e9bd06d66710d2ebc882b
Copyright registration time
2026-07-07T03:42:22+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:c28821c093f8e174ce5878a7bca49260917fbf5b48d389fdb4b2e7ebb1ae8150

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.