Doorway

Recording by Yo-Yo Ma.

Recording identifiers

ISRC
USQX92102894
CopyrightID (CopyrightChains transaction hash)
0x9eaf729dc3d238f6d2e6ad06441ce7b9055c1459e6051c863cbe249c69085f16
Copyright registration time
2026-06-23T10:11:49+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:18ff4ed1c8fc17d3d23c489fc05f2b0f9769c70c4e37376b20b6f99bda7a1908

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.