Symphony No. 3: VIb. Nicht mehr so breit

Recording by Gustav Mahler.

Recording identifiers

ISRC
DEF058009014
CopyrightID (CopyrightChains transaction hash)
0x63ac8c85d26044cf4e18dad340f65d60208f3802c2b828d9e6c2652b50282d74
Copyright registration time
2026-07-07T16:43:38+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:21b6bc7d2c1b3802eeeeda4afba29138bb5c9803fb3d08ff69e243b328f5c77a

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.