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
2026-07-07T12:58:18Z
Bitcoin block
957039
Canonical record hash
sha256:2b628c92ebe14cd0deddb59c8fdb6ac77da806553f8a1e4a91a27ffa40f4c2b3

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.