ISRC GBUM71506291
Verified recording
GBUM71506291 is “You Knew Me When” by Leona Lewis,
registered on the CopyrightChains blockchain with CopyrightID
0xc5d97f6cffd8797003695d9f473d2953ef35a0981fb24046640d8bafdc2088e9 and independently timestamped
in Bitcoin block 953520 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM71506291.
Recording identifiers
- ISRC
- GBUM71506291
- Title
- You Knew Me When
- Artist
- Leona Lewis
- CopyrightID (CopyrightChains transaction hash)
0xc5d97f6cffd8797003695d9f473d2953ef35a0981fb24046640d8bafdc2088e9
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T13:32:09+00:00
- Bitcoin block
- 953520
- Canonical record hash
sha256:417e69e4537e6f25f753985efd1e73f51d74dcfa6427f545c599da07aa0fba64- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM71506291
- Bitcoin block existence check
- https://blockstream.info/api/block/953520