Jonathan´s Versprechen

Recording by Orchestra of the Operetta and Musical Theatre Budapest.

Recording identifiers

ISRC
ATM890801349
CopyrightID (CopyrightChains transaction hash)
0x70851e993923a6cb18c65edf3c95f6a3d92843c4d81c23c2584e9833b0a93e49
Copyright registration time
2026-06-21T01:36:56+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:e9d09719813800ced71a627883adaf7116077bcc5d84bd71ca6cbb61e223de81

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.