ISRC HKI199300603
Verified recording
HKI199300603 is “4 Impromptus, Op. 90, D. 899: Impromptu No. 3 in G-flat Major” by Franz Schubert,
registered on the CopyrightChains blockchain with CopyrightID
0x218f7044d6edd429d439aac1b736be6e9d7b392049648526dd67e47ef589f6fa and independently timestamped
in Bitcoin block 960259 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199300603.
Recording identifiers
- ISRC
- HKI199300603
- Title
- 4 Impromptus, Op. 90, D. 899: Impromptu No. 3 in G-flat Major
- Artist
- Franz Schubert
- CopyrightID (CopyrightChains transaction hash)
0x218f7044d6edd429d439aac1b736be6e9d7b392049648526dd67e47ef589f6fa
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T12:51:24+00:00
- Bitcoin block
- 960259
- Canonical record hash
sha256:5f2aba5d5d3d9b32d65a49fdd4c2ce3ea6702d86bf621ab544b51c91eba8fe83- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199300603
- Bitcoin block existence check
- https://blockstream.info/api/block/960259
Full record
Track page: 4 Impromptus, Op. 90, D. 899: Impromptu No. 3 in G-flat Major · Machine-readable JSON-LD