Symphony No. 3: I. Kräftig. Entschieden

Recording by Gustav Mahler.

Recording identifiers

ISRC
DEN960100421
CopyrightID (CopyrightChains transaction hash)
0x9d506dfd31ad623d93d8ef164eda5985e951ce23ac9a350ef8a9213928b2fd60

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T14:36:16Z
Bitcoin block
960264
Canonical record hash
sha256:a71432b3cd0b7ee2d70ac9a8d8abec6371ee4c6b4a444d8158db15f30c3788b3

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.