Piano Concerto No. 2, Adagio

Recording by Ludwig van Beethoven.

Recording identifiers

ISRC
DER572411010
CopyrightID (CopyrightChains transaction hash)
0x5f68b6f4ceab9613a4ddb3ddb3e9d0f8a0cba43442675f7e167920b0c5f73629
Copyright registration time
2026-07-31T05:55:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T06:42:11Z
Bitcoin block
960360
Canonical record hash
sha256:844fda9c8426314505d41d60d75ade7532de00a87e857bc93f5fbb14cf1a4875

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.