ISRC DEN961531101
Verified recording
DEN961531101 is “Sonnet 43” by Marius de Vries,
registered on the CopyrightChains blockchain with CopyrightID
0x5483542f78f9ba0967931a484f23d0733109a40657c3631c8381046b814ad1fc and independently timestamped
in Bitcoin block 960150 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961531101.
Recording identifiers
- ISRC
- DEN961531101
- Title
- Sonnet 43
- Artist
- Marius de Vries
- CopyrightID (CopyrightChains transaction hash)
0x5483542f78f9ba0967931a484f23d0733109a40657c3631c8381046b814ad1fc
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T21:51:49+00:00
- Bitcoin block
- 960150
- Canonical record hash
sha256:27e80c7cd16a582f385aa83197e84e115b8e772c0f7307e6f7a679169b3cdc78- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961531101
- Bitcoin block existence check
- https://blockstream.info/api/block/960150