Background Blues

Recording by Otto Sieben.

Recording identifiers

ISRC
DEB630002805
CopyrightID (CopyrightChains transaction hash)
0xab0e263c2a4610fc215f761e4cbcfaae7e2f621af6d36a64cde463f1f688d6b2
Copyright registration time
2026-06-11T12:31:47+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:f9db34a27ab3de4a7a72ae362e8304f2d87794cf73629024ab8b876175834afa

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.