10 Pieces for Piano No. 1, Op. 12: March

Recording identifiers

ISRC

CH6542300439

CopyrightID (CopyrightChains transaction hash)

0x1fc2126132b72ec636d31903bac7e5c825dcaf80b3f7c18cd9ba1c4e6e96d9d2

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T12:06:10Z

Bitcoin block

960254

Canonical record hash

sha256:bddc372aed206a1c0a26f6ee93f2853720170d1fc97da2419095025bb523b300

• Verify the CopyrightID on CopyrightChains
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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.