ISRC USLS52216919
Verified recording
USLS52216919 is “Black Of Heart” by Nathan Barr,
registered on the CopyrightChains blockchain with CopyrightID
0x0a45fb43beaed02dffff8508f8031ab49e22768d67a98a6046cb81faef2ea28d and independently timestamped
in Bitcoin block 960334 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLS52216919.
Recording identifiers
- ISRC
- USLS52216919
- Title
- Black Of Heart
- Artist
- Nathan Barr
- CopyrightID (CopyrightChains transaction hash)
0x0a45fb43beaed02dffff8508f8031ab49e22768d67a98a6046cb81faef2ea28d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T02:19:15+00:00
- Bitcoin block
- 960334
- Canonical record hash
sha256:f22af391f0f29fda07904fc4724e38586701df5f285795dd121918f06f942b19- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLS52216919
- Bitcoin block existence check
- https://blockstream.info/api/block/960334