ISRC FRZ209503400
Verified recording
FRZ209503400 is “Gubaidulina : Piano Concerto, 'Introitus'” by Sofia Gubaidulina,
registered on the CopyrightChains blockchain with CopyrightID
0x3dc23c4d17ea90082b5aad082340458f403dc598b45ffabff43ee781f55b8dc2 and independently timestamped
in Bitcoin block 960441 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209503400.
Recording identifiers
- ISRC
- FRZ209503400
- Title
- Gubaidulina : Piano Concerto, 'Introitus'
- Artist
- Sofia Gubaidulina
- CopyrightID (CopyrightChains transaction hash)
0x3dc23c4d17ea90082b5aad082340458f403dc598b45ffabff43ee781f55b8dc2
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T17:29:52+00:00
- Bitcoin block
- 960441
- Canonical record hash
sha256:91f665487dacf8766f6903ecc1a34b63daac749a940e092e35b4edd4e43f056c- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209503400
- Bitcoin block existence check
- https://blockstream.info/api/block/960441
Full record
Track page: Gubaidulina : Piano Concerto, 'Introitus' · Machine-readable JSON-LD