ISRC US83Z2305673
Verified recording
US83Z2305673 is “Numb” by Marksman,
registered on the CopyrightChains blockchain with CopyrightID
0x336490c56e464b4627607f6f096d02ee199f5e7d7f57ccefa208e95bdcbe0921 and independently timestamped
in Bitcoin block 960327 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US83Z2305673.
Recording identifiers
- ISRC
- US83Z2305673
- Title
- Numb
- Artist
- Marksman
- CopyrightID (CopyrightChains transaction hash)
0x336490c56e464b4627607f6f096d02ee199f5e7d7f57ccefa208e95bdcbe0921
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T00:26:26+00:00
- Bitcoin block
- 960327
- Canonical record hash
sha256:7cf1dce89b73b13a7ba720af11f5e38b40944f559835c60638c6f212421294f3- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US83Z2305673
- Bitcoin block existence check
- https://blockstream.info/api/block/960327