Symphony No. 2: I. Allegro maestoso

Recording by Gustav Mahler.

Recording identifiers

ISRC
GBDGQ1223006
CopyrightID (CopyrightChains transaction hash)
0xb665f7e16552a9b7713bebaf2ed983b9f9804f62065b4a3db1ba2b054a76f655
Copyright registration time
2026-07-07T11:08:48+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:7fd0f644a79355cb423452abdf2bf4eb83af694ac170d15bb7de6cb5f8aa728f

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.