Quatre poèmes d’après l’intermezzo d’Heinrich Heine: Prélude

Recording identifiers

ISRC

CALC41200320

Release date of the album this recording appears on

2012-09-04

CopyrightID (CopyrightChains transaction hash)

0x2d09820caf49ff1ab204dc78c8d570bd69b109288264fad2e6073b1cdd7cd094

Copyright registration time

2026-07-31T15:58:42+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T16:07:24Z

Bitcoin block

960429

Canonical record hash

sha256:96e80d47e49ceea0aec44b1dcfa4c03fc4e25adb956e9088afe8b929b0d5df73

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC CALC41200320

What this proof establishes

This recording was released in 2012, 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.