In dulci jubilo

Recording identifiers

ISRC

SEWDL0759603

Release date of the album this recording appears on

2012-01-10

CopyrightID (CopyrightChains transaction hash)

0x97ca54eb17884839db6d6b93f532b483778dbc3d8ffcbe7f9c9b1b9187143500

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T19:53:13Z

Bitcoin block

960455

Canonical record hash

sha256:7605898ecc2b89df86bd438848707baccfc8750ae5d04ac71b8280571fb7ae4d

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC SEWDL0759603

What this proof establishes

This recording was released in 2012, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.