Symphony No. 1: I. Langsam. Schleppen

Recording by Gustav Mahler.

Recording identifiers

ISRC
GBDGQ1223001
CopyrightID (CopyrightChains transaction hash)
0xea428f4259dbd714afec5f1461688145b2769198148b348262047b4c66e98624
Copyright registration time
2026-07-06T23:43:19+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:5efc84008d610bb9d47a2087f06855479327ec26775ec58e5740de2b9e46c315

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.