Rückert-Lieder: Um Mitternacht

Recording by Gustav Mahler.

Recording identifiers

ISRC
DEN961201023
CopyrightID (CopyrightChains transaction hash)
0x453dbfe3eb814656daa67f40d69d4ec11c32807bbd6c0bac7f31c84c3a566f14
Copyright registration time
2026-07-06T07:21:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T13:25:45Z
Bitcoin block
957041
Canonical record hash
sha256:3d9b0b09363bfd157998a8cd7e107b49b40181d1655f1a01d9a60c4f2a099e98

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.