3 Salon Pieces, Op. 33, "Pieces de Societe": No. 3. March

Recording by Fernando Sor.

Recording identifiers

ISRC
HKI199507604
Release date of the album this recording appears on
1997-03-18
CopyrightID (CopyrightChains transaction hash)
0xdc18656c39261d21053462a587a6f87df68219ae02fcd7c67968e57cf8c93697
Copyright registration time
2026-07-31T10:55:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T12:24:41Z
Bitcoin block
960397
Canonical record hash
sha256:271e6ca365c22755a8e42428ac6407265498007b3210e72ddfe0e0b457ac9d22

What this proof establishes

This recording was released in 1997, 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.