ISRC US8270910474
Verified recording
US8270910474 is “Impromptu in 2 Keys” by George Gershwin,
registered on the CopyrightChains blockchain with CopyrightID
0xd9f4097baae6978a8f9ec1243da3d08a70dd3d7a0856637b39a5094869fb53b1 and independently timestamped
in Bitcoin block 960427 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US8270910474.
Recording identifiers
- ISRC
- US8270910474
- Title
- Impromptu in 2 Keys
- Artist
- George Gershwin
- CopyrightID (CopyrightChains transaction hash)
0xd9f4097baae6978a8f9ec1243da3d08a70dd3d7a0856637b39a5094869fb53b1
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T15:59:18+00:00
- Bitcoin block
- 960427
- Canonical record hash
sha256:edd18158c916b23b6a653420367450473488d7fcd9c2dd848e279a5a36643fd8- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US8270910474
- Bitcoin block existence check
- https://blockstream.info/api/block/960427