Symphony No. 5: IV. Adagietto. Sehr langsam

Recording by Gustav Mahler.

Recording identifiers

ISRC
DEF057300881
CopyrightID (CopyrightChains transaction hash)
0x5150570097a2ba47c15f299bdfa0fd30314dc1da200c6c335abe44153a3170cc
Copyright registration time
2026-06-08T01:01:35+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:a3aef222b465143861e3e4b65a4fa42226e62b003d77b4559a25a2c0488231db

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.