Nocturne No. 2 in E Flat, Op. 9 No. 2

Recording identifiers

ISRC

GBF078541806

Release date of the album this recording appears on

2006-01-01

CopyrightID (CopyrightChains transaction hash)

0xaf2731a11a739156df302a866976d939c75298a064a45aea3b894a68022c6aee

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T12:41:21Z

Bitcoin block

960106

Canonical record hash

sha256:437c6ec6f7fd13616095570faf15bb41842465a1ff38ec761c20aa008db86502

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBF078541806

What this proof establishes

This recording was released in 2006, 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.