ISRC DEUF81806665
Verified recording
DEUF81806665 is “Summer Sadness” by Kristian Sonderlund,
registered on the CopyrightChains blockchain with CopyrightID
0x73c7618a612df1964bd837c0d01f171e15d6a65c4aad6311951d1660f2f19148 and independently timestamped
in Bitcoin block 960429 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUF81806665.
Recording identifiers
- ISRC
- DEUF81806665
- Title
- Summer Sadness
- Artist
- Kristian Sonderlund
- CopyrightID (CopyrightChains transaction hash)
0x73c7618a612df1964bd837c0d01f171e15d6a65c4aad6311951d1660f2f19148
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T16:07:24+00:00
- Bitcoin block
- 960429
- Canonical record hash
sha256:f3ff3ab5ef1403496901d9e7751b7bf87e20693be036ec63274fcc17632ebe4b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUF81806665
- Bitcoin block existence check
- https://blockstream.info/api/block/960429