ISRC USRC11403223
Verified recording
USRC11403223 is “Processional Waltz” by Irwin Kostal,
registered on the CopyrightChains blockchain with CopyrightID
0x0f0ca98a679d3e4a302cbf139ed27709ef20b5caf4288130b8ba720463611022 and independently timestamped
in Bitcoin block 953513 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRC11403223.
Recording identifiers
- ISRC
- USRC11403223
- Title
- Processional Waltz
- Artist
- Irwin Kostal
- CopyrightID (CopyrightChains transaction hash)
0x0f0ca98a679d3e4a302cbf139ed27709ef20b5caf4288130b8ba720463611022
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:47:07+00:00
- Bitcoin block
- 953513
- Canonical record hash
sha256:38abfaf28675872a9cfc4588dbe59653879debe7a516c6695fce85b9d0a37265- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRC11403223
- Bitcoin block existence check
- https://blockstream.info/api/block/953513