ISRC USSM19701454
Verified recording
USSM19701454 is “Concerto No. 4 for Guitar and Orchestra - Dedicated to John Williams "Concerto de Toronto": III. Tempo libero - Allegro” by Leo Brouwer,
registered on the CopyrightChains blockchain with CopyrightID
0xec02460dc5207a88ce8c65be6c0316b4c6725d1b7bef15025d662a112c51064f and independently timestamped
in Bitcoin block 960349 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19701454.
Recording identifiers
- ISRC
- USSM19701454
- Title
- Concerto No. 4 for Guitar and Orchestra - Dedicated to John Williams "Concerto de Toronto": III. Tempo libero - Allegro
- Artist
- Leo Brouwer
- CopyrightID (CopyrightChains transaction hash)
0xec02460dc5207a88ce8c65be6c0316b4c6725d1b7bef15025d662a112c51064f
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T05:23:41+00:00
- Bitcoin block
- 960349
- Canonical record hash
sha256:3fad2a9375394672c5fd6535f1055c9e4a456597eeda9a4995f6bac71ac06e61- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19701454
- Bitcoin block existence check
- https://blockstream.info/api/block/960349
Full record
Track page: Concerto No. 4 for Guitar and Orchestra - Dedicated to John Williams "Concerto de Toronto": III. Tempo libero - Allegro · Machine-readable JSON-LD