ISRC FR2X42314302
Verified recording
FR2X42314302 is “Question Mark” by Topu,
registered on the CopyrightChains blockchain with CopyrightID
0x28c21d4897b9c885f29b79f72067d8ec59fefe0e30cc915bc2e6723209e3ddc0 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2X42314302.
Recording identifiers
- ISRC
- FR2X42314302
- Title
- Question Mark
- Artist
- Topu
- CopyrightID (CopyrightChains transaction hash)
0x28c21d4897b9c885f29b79f72067d8ec59fefe0e30cc915bc2e6723209e3ddc0
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:3d7f2ca51dd23be69fc99ab6791164ff00eed074adf43b4696d7b9403ddc5d0a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2X42314302
- Bitcoin block existence check
- https://blockstream.info/api/block/957118