ISRC DE1E12210004
Verified recording
DE1E12210004 is “12 Duets For Two Horns, K. 487: IV. Polonaise” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x412e437ea3d83470b17ca61c760fde2c7000bcf5c12ca248c6b4243751c16026 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/DE1E12210004.
Recording identifiers
- ISRC
- DE1E12210004
- Title
- 12 Duets For Two Horns, K. 487: IV. Polonaise
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x412e437ea3d83470b17ca61c760fde2c7000bcf5c12ca248c6b4243751c16026
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T12:24:41+00:00
- Bitcoin block
- 960397
- Canonical record hash
sha256:d9bf96d85c269c88355c184316ffd0bbda19e3ceebac3f0655c6047e082ff5f2- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1E12210004
- Bitcoin block existence check
- https://blockstream.info/api/block/960397
Full record
Track page: 12 Duets For Two Horns, K. 487: IV. Polonaise · Machine-readable JSON-LD