In dulci jubilo

Recording by Thomanerchor Leipzig.

Recording identifiers

ISRC
DEE701303221
CopyrightID (CopyrightChains transaction hash)
0xafe820bc6fcd8c7dfb6344b4ebc5ab4df1d406db778c6bb91a9ff7fe4a002170
Copyright registration time
2026-07-07T05:32:00+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:6da6c1248f391b5fdc3e3b470b5ceb664755a12794f495fa3cc71ebdd91a4e94

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.