Symphony No. 5: I. Trauermarsch

Recording by Gustav Mahler.

Recording identifiers

ISRC
DEF059602761
CopyrightID (CopyrightChains transaction hash)
0x5cdba676d0c7daf7df2eebbba06c709c766c616bb4ed4542f11481dfe5524673
Copyright registration time
2026-07-30T22:38:57+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T00:26:26Z
Bitcoin block
960327
Canonical record hash
sha256:135c0bb3aae9061e2c9ff68c7f0d5553acd0bcd0f3f9fdbf8536e3a849c65291

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.