ISRC GBSMU2812646
Verified recording
GBSMU2812646 is “Piano Sonata in C Minor - No. II” by Carlos Marquez,
registered on the CopyrightChains blockchain with CopyrightID
0xf858f62e94a81e422f663ff217934b745966f1ed1dbcbf6bf7ef780e0eb1f1ed and independently timestamped
in Bitcoin block 960309 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU2812646.
Recording identifiers
- ISRC
- GBSMU2812646
- Title
- Piano Sonata in C Minor - No. II
- Artist
- Carlos Marquez
- CopyrightID (CopyrightChains transaction hash)
0xf858f62e94a81e422f663ff217934b745966f1ed1dbcbf6bf7ef780e0eb1f1ed
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T20:35:49+00:00
- Bitcoin block
- 960309
- Canonical record hash
sha256:ba7fa6e10ef3157cf461ff1a439553f177ce7340d25cead3df73193c7e80b1fd- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU2812646
- Bitcoin block existence check
- https://blockstream.info/api/block/960309
Full record
Track page: Piano Sonata in C Minor - No. II · Machine-readable JSON-LD