Symphony No. 7 in E Minor: I. Langsam

Recording by Gustav Mahler.

Recording identifiers

ISRC
DELW72320901
CopyrightID (CopyrightChains transaction hash)
0xac876e89b232bd8c496529265c7da7ea846304d114f4a0ef171df44faa8b503c
Copyright registration time
2026-07-30T06:30:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T06:57:05Z
Bitcoin block
960218
Canonical record hash
sha256:dc06d3609dfb2659d6a931022b6792d7aa6d2ad41be66745885827fd0a9d2a18

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.