ISRC USQ4E1401095
Verified recording
USQ4E1401095 is “Chalkboard” by Jóhann Jóhannsson,
registered on the CopyrightChains blockchain with CopyrightID
0x2cbf618da61243d356e1010c0d83c442eb0b58c85f104436d1f14cf4751acd3f 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/USQ4E1401095.
Recording identifiers
- ISRC
- USQ4E1401095
- Title
- Chalkboard
- Artist
- Jóhann Jóhannsson
- CopyrightID (CopyrightChains transaction hash)
0x2cbf618da61243d356e1010c0d83c442eb0b58c85f104436d1f14cf4751acd3f
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:47:07+00:00
- Bitcoin block
- 953513
- Canonical record hash
sha256:2772016ecd521f130418d1f3504115db1dbdbc81995d061c932168886c43bc25- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQ4E1401095
- Bitcoin block existence check
- https://blockstream.info/api/block/953513