Playera

Recording by Dave Grusin.

Recording identifiers

ISRC
USGR18600007
CopyrightID (CopyrightChains transaction hash)
0x757231aa9c82de45a60d1c83c623f102675b8502cbce6a822f53d34553bfd6b9
Copyright registration time
2026-06-23T09:27:35+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:88ab23705e0c01ce130abc377db4f2c11448ea99f0e8411e24d9fd4cb48e43ca

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.