ISRC USSM11000335
Verified recording
USSM11000335 is “Nocturne - Live April 1972 At Sigma Sound Studios, WMMR Radio, Philadelphia, PA” by Billy Joel,
registered on the CopyrightChains blockchain with CopyrightID
0x806b8b15ebcc019760d956a73843f3be2ed4afe5bc44827d3933a09c7f3c9a69 and independently timestamped
in Bitcoin block 953520 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11000335.
Recording identifiers
- ISRC
- USSM11000335
- Title
- Nocturne - Live April 1972 At Sigma Sound Studios, WMMR Radio, Philadelphia, PA
- Artist
- Billy Joel
- CopyrightID (CopyrightChains transaction hash)
0x806b8b15ebcc019760d956a73843f3be2ed4afe5bc44827d3933a09c7f3c9a69
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T13:32:09+00:00
- Bitcoin block
- 953520
- Canonical record hash
sha256:8cb72b51608634beeee24b417d8c67cbe5ec68ff8018048a728d2339fc178e95- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11000335
- Bitcoin block existence check
- https://blockstream.info/api/block/953520
Full record
Track page: Nocturne - Live April 1972 At Sigma Sound Studios, WMMR Radio, Philadelphia, PA · Machine-readable JSON-LD