ISRC DEF059605584
Verified recording
DEF059605584 is “4 Impromptus, Op. 90, D. 899: No. 4 in A-Flat Major: Allegretto” by Franz Schubert,
registered on the CopyrightChains blockchain with CopyrightID
0xc322d53a7470b902ad9d3775752066d737e12b70aa44e6f67a8c2c0a19b8b276 and independently timestamped
in Bitcoin block 960397 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059605584.
Recording identifiers
- ISRC
- DEF059605584
- Title
- 4 Impromptus, Op. 90, D. 899: No. 4 in A-Flat Major: Allegretto
- Artist
- Franz Schubert
- CopyrightID (CopyrightChains transaction hash)
0xc322d53a7470b902ad9d3775752066d737e12b70aa44e6f67a8c2c0a19b8b276
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T12:24:41+00:00
- Bitcoin block
- 960397
- Canonical record hash
sha256:88f8a40bd63de041fee5a32b68afd5f8787eb846fd207c09bd9ebc11c4748974- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059605584
- Bitcoin block existence check
- https://blockstream.info/api/block/960397
Full record
Track page: 4 Impromptus, Op. 90, D. 899: No. 4 in A-Flat Major: Allegretto · Machine-readable JSON-LD