ISRC USUM71311298
Verified recording
USUM71311298 is “International Smile” by Katy Perry,
registered on the CopyrightChains blockchain with CopyrightID
0xac53879be9c24b7811122941e890c3d1106ffe5c3d4bc8aaf99f60f57e3eb8ce 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/USUM71311298.
Recording identifiers
- ISRC
- USUM71311298
- Title
- International Smile
- Artist
- Katy Perry
- CopyrightID (CopyrightChains transaction hash)
0xac53879be9c24b7811122941e890c3d1106ffe5c3d4bc8aaf99f60f57e3eb8ce
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:47:07+00:00
- Bitcoin block
- 953513
- Canonical record hash
sha256:797b3d3f7c256b146f415a2671011f41bf5ee096d3ef5711a4d2d2ad6dceb4ad- Verification API (seven-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM71311298
- Bitcoin block existence check
- https://blockstream.info/api/block/953513