Hart und weich zugleich

Recording by Boris Bukowski.

Recording identifiers

ISRC
ATE068700300
CopyrightID (CopyrightChains transaction hash)
0x9dc337439ab7013a1f226775d7109d809026c0c7086cd356efabb991d7d8531e
Copyright registration time
2026-07-07T21:15:50+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:b8c34ee16a39834280f919ff0fbf65e83d91b4d143e182a9002d32d1ecaf3322

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.