2 Etudes de Concert, S.145: No. 1 Waldesrauschen

Recording identifiers

ISRC

NLA507000259

CopyrightID (CopyrightChains transaction hash)

0x94d62c9335979c53af41a8b2dc61c14f15c553333d6c735d80202c25e8a37c5f

Copyright registration time

2026-07-30T15:52:40+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T16:10:47Z

Bitcoin block

960277

Canonical record hash

sha256:6ce440f9f350368513d98dfff7d9914a093a7ed6d61800a0c779c60e942f553d

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. 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.