ISRC USUM71319366
Verified recording
USUM71319366 is “Backpack” by Justin Bieber,
registered on the CopyrightChains blockchain with CopyrightID
0x82a5f53c9f63d0a9df1e0ba1c04e97f4414ec3b5a01684f280fbc0b4391c0f21 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/USUM71319366.
Recording identifiers
- ISRC
- USUM71319366
- Title
- Backpack
- Artist
- Justin Bieber
- CopyrightID (CopyrightChains transaction hash)
0x82a5f53c9f63d0a9df1e0ba1c04e97f4414ec3b5a01684f280fbc0b4391c0f21
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:47:07+00:00
- Bitcoin block
- 953513
- Canonical record hash
sha256:fe2bb16f3c56470037518aa15cd43e8e702818ff3e8640640f04dab9db7c1d5c- Verification API (seven-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM71319366
- Bitcoin block existence check
- https://blockstream.info/api/block/953513