ISRC USUM72221405
Verified recording
USUM72221405 is “Since 9th Grade” by Toosii,
registered on the CopyrightChains blockchain with CopyrightID
0x97dd5a985c2448e13d2f08c188774f2e748e357379a788fa55eae7e8226c755f and independently timestamped
in Bitcoin block 953513 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72221405.
Recording identifiers
- ISRC
- USUM72221405
- Title
- Since 9th Grade
- Artist
- Toosii
- CopyrightID (CopyrightChains transaction hash)
0x97dd5a985c2448e13d2f08c188774f2e748e357379a788fa55eae7e8226c755f
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:47:07+00:00
- Bitcoin block
- 953513
- Canonical record hash
sha256:7eada2e63c2682e5b5d6f5f092ffdfc15da48946d0633b7c3821f35364689994- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72221405
- Bitcoin block existence check
- https://blockstream.info/api/block/953513