Curtain Call

Recording identifiers

ISRC

USUM71811831

CopyrightID (CopyrightChains transaction hash)

0x0e10781f582d9d0c9f745c4d6a62d56d91cf78c53ceb6bedc35dd1e7e818c6ff

Copyright registration time

2026-07-06T08:42:42+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-07T18:39:05Z

Bitcoin block

957073

Canonical record hash

sha256:4a95eb14c4c94cbab13cdd34c078e51c69f306b3c4bb771c0d9dbe9a28b48eb6

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.