Präludium, BWV 937 from Johann Peter Kellner's Collection

Recording identifiers

ISRC

NLY332201997

Release date of the album this recording appears on

2023-02-01

CopyrightID (CopyrightChains transaction hash)

0x250b60bc262dd7736422578b68149fb156789e49d041c5146f864868bd60d1c3

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T17:29:52Z

Bitcoin block

960441

Canonical record hash

sha256:1285f9c369c78859fd7d9afbe2e95dd8d83795613e56a49f14818bfb5d7afdc8

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC NLY332201997

What this proof establishes

This recording was released in 2023. ProofProfile's artist catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and this recording entered the record through cc-db-prod's ISRC-linked registration. Its provenance rests on the dates stated above rather than on the era of that source corpus.

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.