ISRC USQ4E1804026
Verified recording
USQ4E1804026 is “Baby Mark” by Justin Hurwitz,
registered on the CopyrightChains blockchain with CopyrightID
0x1f3ddc1253437fbc64b9e0e6b5e2300aef7e2ae8206c7a66d02b0b98289658d6 and independently timestamped
in Bitcoin block 953515 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQ4E1804026.
Recording identifiers
- ISRC
- USQ4E1804026
- Title
- Baby Mark
- Artist
- Justin Hurwitz
- CopyrightID (CopyrightChains transaction hash)
0x1f3ddc1253437fbc64b9e0e6b5e2300aef7e2ae8206c7a66d02b0b98289658d6
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:53:06+00:00
- Bitcoin block
- 953515
- Canonical record hash
sha256:e7b3b7265f166d1ff31f1d2a33fb10330ceb422b884dbd91fdc0de3a52c1610f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQ4E1804026
- Bitcoin block existence check
- https://blockstream.info/api/block/953515