ISRC USUR40301207
Verified recording
USUR40301207 is “Top Floor” by Greyboy,
registered on the CopyrightChains blockchain with CopyrightID
0xa778a5346521fbbf822278392bbb741f515f2690e2e9607a119ae5213ff53adc and independently timestamped
in Bitcoin block 956889 on 2026-07-06.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUR40301207.
Recording identifiers
- ISRC
- USUR40301207
- Title
- Top Floor
- Artist
- Greyboy
- CopyrightID (CopyrightChains transaction hash)
0xa778a5346521fbbf822278392bbb741f515f2690e2e9607a119ae5213ff53adc
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-06T06:56:49+00:00
- Bitcoin block
- 956889
- Canonical record hash
sha256:5f41029fd63aa590a217377949f56dcf894b2dded807922bffd3358ceb8a99a0- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUR40301207
- Bitcoin block existence check
- https://blockstream.info/api/block/956889