Keiner schlafe (Turandot)

Recording by Jan Kiepura.

Recording identifiers

ISRC
ATP139613808
CopyrightID (CopyrightChains transaction hash)
0x8a6dba5dd740ec2bee61170ba76c8c8f45990de91c554fbbce199534c3261b7b
Copyright registration time
2026-07-31T23:48:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-08-01T00:10:46Z
Bitcoin block
960485
Canonical record hash
sha256:ae578799967709ba4afcd8e10a3cc8c5c639238d28551cbe2bd17292462e3a8f

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.