Delibes: Sylvia, Act 1: No. 6, Valse lente

Recording by Léo Delibes.

Recording identifiers

ISRC
FRZ110000151
Release date of the album this recording appears on
1978-01-01
CopyrightID (CopyrightChains transaction hash)
0x4573b22b15f95b24197b4f7f6703fe72e626ad9791aa66c545609b80773867c8
Copyright registration time
2026-07-30T10:04:37+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T10:42:33Z
Bitcoin block
960247
Canonical record hash
sha256:ccf5e63e16726c94aa714e35001a3536c4ac8c8a6f968bf64d4b370e56602f54

What this proof establishes

This recording was released in 1978, 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.