Back to Black

Recording by Karin Bloemen.

Recording identifiers

ISRC
NLL6R2001010
CopyrightID (CopyrightChains transaction hash)
0x852df70380987ce6ea4b14d686da25fa3f1f9b762c940c3faefca529437c2b04
Copyright registration time
2026-07-07T07:09:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:befcfa10ddc565f285720d7bcf1f35f5499a66b3adf3b97657b65f7c20e5a809

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.