Sag' mir nicht Adieu, sag' nur Auf Wiederseh'n

Recording identifiers

ISRC

DEZ921900804

Release date of the album this recording appears on

2019-06-28

CopyrightID (CopyrightChains transaction hash)

0x8c83f4115f922f44fd5f768e704682d9149330d203485849b4bc1232725975f6

Copyright registration time

2026-07-30T18:10:48+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T18:23:33Z

Bitcoin block

960291

Canonical record hash

sha256:8eaf540d53cbd95f2961d08df53cd948a19a4ccd696a85a248b18343a10d793e

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEZ921900804

What this proof establishes

This recording was released in 2019, 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.