ISRC USI4R0402723
Verified recording
USI4R0402723 is “Rakuen” by Eri Sugai,
registered on the CopyrightChains blockchain with CopyrightID
0x92ff3b4a778931a5d104b2f680dd0cba3edc673ab79a8b4b84fae440b17db13a and independently timestamped
in Bitcoin block 959145 on 2026-07-22.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USI4R0402723.
Recording identifiers
- ISRC
- USI4R0402723
- Title
- Rakuen
- Artist
- Eri Sugai
- CopyrightID (CopyrightChains transaction hash)
0x92ff3b4a778931a5d104b2f680dd0cba3edc673ab79a8b4b84fae440b17db13a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-22T15:39:05+00:00
- Bitcoin block
- 959145
- Canonical record hash
sha256:ffaf22d5dc30030c73ecec1a2877f865e4aed2abe3a378e2af392faa23614e50- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USI4R0402723
- Bitcoin block existence check
- https://blockstream.info/api/block/959145