Sorgenfrei

Recording by Leonard.

Recording identifiers

ISRC
DEA761601106
CopyrightID (CopyrightChains transaction hash)
0x98828c42efd7560c8e2c67f246251ac95d2ab7f2bf660bda63de115de3812a75
Copyright registration time
2026-07-30T23:27:40+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T00:26:26Z
Bitcoin block
960327
Canonical record hash
sha256:b359717c96accfe1afce6795b1876948f84d748c5ddda610bcda18f73464ec7a

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.