ISRC USC4R2218731
Verified recording
USC4R2218731 is “End Cast” by Irwin Kostal,
registered on the CopyrightChains blockchain with CopyrightID
0x0b788130cbe8e84f0e9448490973d79b2f7ace1a8dcf65f5e674482b3fd6df72 and independently timestamped
in Bitcoin block 960108 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USC4R2218731.
Recording identifiers
- ISRC
- USC4R2218731
- Title
- End Cast
- Artist
- Irwin Kostal
- CopyrightID (CopyrightChains transaction hash)
0x0b788130cbe8e84f0e9448490973d79b2f7ace1a8dcf65f5e674482b3fd6df72
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T13:09:35+00:00
- Bitcoin block
- 960108
- Canonical record hash
sha256:f3b2cce079636aa340c641beb4a3e5bc5c1d6b779e3acc04530d39bca132090a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USC4R2218731
- Bitcoin block existence check
- https://blockstream.info/api/block/960108