ISRC JPP591908107
Verified recording
JPP591908107 is “15 Improvisations: No. 4 in A-Flat Major, FP 63 No. 4” by Francis Poulenc,
registered on the CopyrightChains blockchain with CopyrightID
0x3fc5f974843639b3ba07c2e13b05b87b888870ff7774627226269a78c99328e7 and independently timestamped
in Bitcoin block 960368 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPP591908107.
Recording identifiers
- ISRC
- JPP591908107
- Title
- 15 Improvisations: No. 4 in A-Flat Major, FP 63 No. 4
- Artist
- Francis Poulenc
- CopyrightID (CopyrightChains transaction hash)
0x3fc5f974843639b3ba07c2e13b05b87b888870ff7774627226269a78c99328e7
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T08:26:41+00:00
- Bitcoin block
- 960368
- Canonical record hash
sha256:a75c2a2425a0a7091f8ad2114280c8d95ee865285414d44ea8972e4c493c7c4e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPP591908107
- Bitcoin block existence check
- https://blockstream.info/api/block/960368
Full record
Track page: 15 Improvisations: No. 4 in A-Flat Major, FP 63 No. 4 · Machine-readable JSON-LD