Undecided - Live At The Concord Summer Festival, Concord, CA / June 28, 1974

Recording identifiers

ISRC

USC4R0301543

Release date of the album this recording appears on

2020-05-29

CopyrightID (CopyrightChains transaction hash)

0x121535e81a34e33f3ec3d8b8de487ab8df121ba0e235b7d253e0d9d6db386861

Copyright registration time

2026-06-25T18:24:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:55:08Z

Bitcoin block

956304

Canonical record hash

sha256:24d05e90f5a84609ea6fe3260b3a15b18558a8d4998cf89be2562a4273ba88c1

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC USC4R0301543

What this proof establishes

This recording was released in 2020, 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.