ISRC USSM18600250
Verified recording
USSM18600250 is “A Nightingale Sang In Berkeley Square” by Eric Maschwitz,
registered on the CopyrightChains blockchain with CopyrightID
0x540f5ba51252585c86f9f5d2fb4dc9b0a9cb76a493499f0fe74fcc0b8e0365a2 and independently timestamped
in Bitcoin block 960500 on 2026-08-01.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM18600250.
Recording identifiers
- ISRC
- USSM18600250
- Title
- A Nightingale Sang In Berkeley Square
- Artist
- Eric Maschwitz
- CopyrightID (CopyrightChains transaction hash)
0x540f5ba51252585c86f9f5d2fb4dc9b0a9cb76a493499f0fe74fcc0b8e0365a2
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-08-01T03:13:03+00:00
- Bitcoin block
- 960500
- Canonical record hash
sha256:c2b8d3873ffefe2fc17edcb89f4bf7ae53fafc1b4f9c65ae28b47878013af7b0- Verification API (seven-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM18600250
- Bitcoin block existence check
- https://blockstream.info/api/block/960500
Full record
Track page: A Nightingale Sang In Berkeley Square · Machine-readable JSON-LD