ISRC USRW50200239
Verified recording
USRW50200239 is “Mathematics” by Mos Def,
registered on the CopyrightChains blockchain with CopyrightID
0x7cc52c4bedce6e69a11f0aca6936379ffd6e0b85478dd4c14333896efed3ee95 and independently timestamped
in Bitcoin block 960095 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRW50200239.
Recording identifiers
- ISRC
- USRW50200239
- Title
- Mathematics
- Artist
- Mos Def
- CopyrightID (CopyrightChains transaction hash)
0x7cc52c4bedce6e69a11f0aca6936379ffd6e0b85478dd4c14333896efed3ee95
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T11:07:37+00:00
- Bitcoin block
- 960095
- Canonical record hash
sha256:545360a43b58f00eb0a754d0898b3d6fcd95e4faa6b3574fec59d61b015a9f12- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRW50200239
- Bitcoin block existence check
- https://blockstream.info/api/block/960095