ISRC FRUM78300045
Verified recording
FRUM78300045 is “4 Impromptus, Op. 90, D.899: N°4 en la bémol majeur” by Franz Schubert,
registered on the CopyrightChains blockchain with CopyrightID
0xa3a3025b04fc2e24ce482e68a4b184d674c0eb9080c95106546c4f9594f9a0f8 and independently timestamped
in Bitcoin block 956889 on 2026-07-06.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRUM78300045.
Recording identifiers
- ISRC
- FRUM78300045
- Title
- 4 Impromptus, Op. 90, D.899: N°4 en la bémol majeur
- Artist
- Franz Schubert
- CopyrightID (CopyrightChains transaction hash)
0xa3a3025b04fc2e24ce482e68a4b184d674c0eb9080c95106546c4f9594f9a0f8
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-06T06:56:49+00:00
- Bitcoin block
- 956889
- Canonical record hash
sha256:48eb539da97a432e4c7921846c205e58f78a7f56ed69a65956fd79e27f37ef41- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRUM78300045
- Bitcoin block existence check
- https://blockstream.info/api/block/956889
Full record
Track page: 4 Impromptus, Op. 90, D.899: N°4 en la bémol majeur · Machine-readable JSON-LD