Marcia from Serenade for Strings Op. 11

Recording by Dag Wirén.

Recording identifiers

ISRC
NODGN1606200
Release date of the album this recording appears on
2016-07-04
CopyrightID (CopyrightChains transaction hash)
0xf10928b8d271bbbd0225c9864c52896aaee3d20b67a8acdada3a1d07a1d79347
Copyright registration time
2026-07-30T22:26:08+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T00:26:26Z
Bitcoin block
960327
Canonical record hash
sha256:886b94ade7436433fc35285a4d277095048c61baf3bd8b84ff79e6a40429c7bb

What this proof establishes

This recording was released in 2016, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.