Chopin: Nocturne No. 1 in B-Flat Minor, Op. 9 No. 1

Recording identifiers

ISRC

DEA809200701

Release date of the album this recording appears on

2024-01-30

CopyrightID (CopyrightChains transaction hash)

0x1f08cbd21a7db3fdf0b0ffb085a2c212527de4fb8136a1b0656b966f27320b2c

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T12:35:17Z

Bitcoin block

960105

Canonical record hash

sha256:35cac5861b3643ca9e1ec847140e7bc97df02b3a7722a802505bda27735fa4be

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEA809200701

What this proof establishes

This recording was released in 2024. 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.