Benjamin

Recording by Yo-Yo Ma.

Recording identifiers

ISRC
USSM19932395
CopyrightID (CopyrightChains transaction hash)
0x0a81dc9290adce3c8977ad1f5a492c191ab146c57c0be7d5ad7ee3e09daecf72
Copyright registration time
2026-06-05T04:43:56+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:064a752c155ebd82223650e53eef92e869a796193edfd8d4d5d7c405aa3f5627

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.