ISRC GBSMU2430848
Verified recording
GBSMU2430848 is “Valse melancolique No. 11 in B Flat Minor -for the left hand-” by Carlos Marquez,
registered on the CopyrightChains blockchain with CopyrightID
0xd4e46e5e70502a952f1ea82c63bb4bb4df116998c97a06b15a3aef5d688ddf08 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/GBSMU2430848.
Recording identifiers
- ISRC
- GBSMU2430848
- Title
- Valse melancolique No. 11 in B Flat Minor -for the left hand-
- Artist
- Carlos Marquez
- CopyrightID (CopyrightChains transaction hash)
0xd4e46e5e70502a952f1ea82c63bb4bb4df116998c97a06b15a3aef5d688ddf08
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-08-01T03:13:03+00:00
- Bitcoin block
- 960500
- Canonical record hash
sha256:e9562a96f19080d6ca4d6c7fb96b767d366e44631924a7beec8fd127c9a85177- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU2430848
- Bitcoin block existence check
- https://blockstream.info/api/block/960500
Full record
Track page: Valse melancolique No. 11 in B Flat Minor -for the left hand- · Machine-readable JSON-LD