ISRC USUM72102880
Verified recording
USUM72102880 is “what it cost” by Toosii,
registered on the CopyrightChains blockchain with CopyrightID
0x7f768a1794d2ab7d20e439d596f91d91e38b81b2e5556b8944243ca8e1fbf447 and independently timestamped
in Bitcoin block 953515 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72102880.
Recording identifiers
- ISRC
- USUM72102880
- Title
- what it cost
- Artist
- Toosii
- CopyrightID (CopyrightChains transaction hash)
0x7f768a1794d2ab7d20e439d596f91d91e38b81b2e5556b8944243ca8e1fbf447
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:53:06+00:00
- Bitcoin block
- 953515
- Canonical record hash
sha256:e5ae541f433474b237dbab6c7ab26b977a9e689d4b1bef327a3ec5aed90ae3e7- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72102880
- Bitcoin block existence check
- https://blockstream.info/api/block/953515