ISRC USI4R0902732
Verified recording
USI4R0902732 is “Hold Up” by Marco Polo,
registered on the CopyrightChains blockchain with CopyrightID
0xa6d86410f6d5fa2ea148b4329cbe76abf59aebfd6bf2f0c4674509d20ac7c1e4 and independently timestamped
in Bitcoin block 959137 on 2026-07-22.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USI4R0902732.
Recording identifiers
- ISRC
- USI4R0902732
- Title
- Hold Up
- Artist
- Marco Polo
- CopyrightID (CopyrightChains transaction hash)
0xa6d86410f6d5fa2ea148b4329cbe76abf59aebfd6bf2f0c4674509d20ac7c1e4
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-22T14:03:35+00:00
- Bitcoin block
- 959137
- Canonical record hash
sha256:7644038dbf453ce07cea54d1114fe7410a6049f7f018692d3a200347c7b3dacb- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USI4R0902732
- Bitcoin block existence check
- https://blockstream.info/api/block/959137