ISRC USPR36400073
Verified recording
USPR36400073 is “Spring Is Here” by Cal Tjader,
registered on the CopyrightChains blockchain with CopyrightID
0x7bd9e188a749da403f2df1d127cfc956e858bc054874c66f1b6182f352b25ef2 and independently timestamped
in Bitcoin block 960259 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USPR36400073.
Recording identifiers
- ISRC
- USPR36400073
- Title
- Spring Is Here
- Artist
- Cal Tjader
- CopyrightID (CopyrightChains transaction hash)
0x7bd9e188a749da403f2df1d127cfc956e858bc054874c66f1b6182f352b25ef2
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T12:51:24+00:00
- Bitcoin block
- 960259
- Canonical record hash
sha256:f7a6e701adb88ddb37bbba17223f7208fa2c64fe2373e15636ba9cfdad00a3ca- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USPR36400073
- Bitcoin block existence check
- https://blockstream.info/api/block/960259