ISRC USQ4E1703340
Verified recording
USQ4E1703340 is “Capital Letters” by Hailee Steinfeld,
registered on the CopyrightChains blockchain with CopyrightID
0x2ca21f5e88996e5a5214e962b706973f99b1f3fc456e03c3b34388047f8634d6 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/USQ4E1703340.
Recording identifiers
- ISRC
- USQ4E1703340
- Title
- Capital Letters
- Artist
- Hailee Steinfeld
- CopyrightID (CopyrightChains transaction hash)
0x2ca21f5e88996e5a5214e962b706973f99b1f3fc456e03c3b34388047f8634d6
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:47:07+00:00
- Bitcoin block
- 953513
- Canonical record hash
sha256:3b623053f97832323e6679fab2af31928805359797b3da03dd510faada0d3ef9- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQ4E1703340
- Bitcoin block existence check
- https://blockstream.info/api/block/953513