ISRC USSM19701944
Verified recording
USSM19701944 is “Concerto No. 4 for Guitar and Orchestra - Dedicated to John Williams "Concerto de Toronto": Variation III” by Leo Brouwer,
registered on the CopyrightChains blockchain with CopyrightID
0xb6cf0736c96e8274f1c99689801ee65b8d4c0320e6a6582a6ea1242962dd49e6 and independently timestamped
in Bitcoin block 960344 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19701944.
Recording identifiers
- ISRC
- USSM19701944
- Title
- Concerto No. 4 for Guitar and Orchestra - Dedicated to John Williams "Concerto de Toronto": Variation III
- Artist
- Leo Brouwer
- CopyrightID (CopyrightChains transaction hash)
0xb6cf0736c96e8274f1c99689801ee65b8d4c0320e6a6582a6ea1242962dd49e6
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T04:14:58+00:00
- Bitcoin block
- 960344
- Canonical record hash
sha256:84669e81c4b645b34840151286a1e4a1fc9f3a4f676d0788466ae240ce35bca7- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19701944
- Bitcoin block existence check
- https://blockstream.info/api/block/960344
Full record
Track page: Concerto No. 4 for Guitar and Orchestra - Dedicated to John Williams "Concerto de Toronto": Variation III · Machine-readable JSON-LD