ISRC USSM19701942
Verified recording
USSM19701942 is “Concerto No. 4 for Guitar and Orchestra - Dedicated to John Williams "Concerto de Toronto": Variation I” by Leo Brouwer,
registered on the CopyrightChains blockchain with CopyrightID
0xc89fa18d806940a33dce565efe2cbfd5cea30d7cfd51aa1b20b3698085214a49 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19701942.
Recording identifiers
- ISRC
- USSM19701942
- Title
- Concerto No. 4 for Guitar and Orchestra - Dedicated to John Williams "Concerto de Toronto": Variation I
- Artist
- Leo Brouwer
- CopyrightID (CopyrightChains transaction hash)
0xc89fa18d806940a33dce565efe2cbfd5cea30d7cfd51aa1b20b3698085214a49
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:4368003e26354b281b087a8e5529b8c6edfcb064e6cb0c98ae916d9e857ac8cc- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19701942
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Concerto No. 4 for Guitar and Orchestra - Dedicated to John Williams "Concerto de Toronto": Variation I · Machine-readable JSON-LD