Blauer Himmel

Recording by Erwin Bolt Tanz Orchester.

Recording identifiers

ISRC
DEBL61059146
CopyrightID (CopyrightChains transaction hash)
0xba23c44774d5496a2a27a4deed3cf8ef41240013171a3cb30e9fb5262cdc4e11
Copyright registration time
2026-07-07T13:36:20+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:fe96c297eceb50f3c4851e6617ab24489d7f89c639df5e78d761a5dca67ddba3

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.