Marmor, Stein und Eisen bricht

Recording by Ludwig Hirsch.

Recording identifiers

ISRC
ATF068400650
CopyrightID (CopyrightChains transaction hash)
0xd88071fcaaf4e92bb03a06b9e2b8bff3a52f9c91101163e257e051f71fe2f0fe
Copyright registration time
2026-06-10T00:41:52+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:5861fc4009b2f25c645f46f611d9016b52f47fcfb00101aeafcb88bedd6b87d6

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.