Cello Concerto: II. Lo stesso tempo

Recording by György Ligeti.

Recording identifiers

ISRC
SEAEX1609020
CopyrightID (CopyrightChains transaction hash)
0x3bb6df9a4b4c665b8051adc21a829f4ff6eb03de1c175d338589d9e8b58c8986
Copyright registration time
2026-07-31T08:39:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T09:09:19Z
Bitcoin block
960376
Canonical record hash
sha256:f7e4989922c48c6d83d16e59d8675fc12ec59b3b09f93866bd6e7a04c5a9f83b

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.