ISRC NLCK41056512
Verified recording
NLCK41056512 is “Sludge” by Teffa,
registered on the CopyrightChains blockchain with CopyrightID
0x202608d2b831f15abc38c381c7a87b24686940b11487797a9d6b368a889b3316 and independently timestamped
in Bitcoin block 960448 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLCK41056512.
Recording identifiers
- ISRC
- NLCK41056512
- Title
- Sludge
- Artist
- Teffa
- CopyrightID (CopyrightChains transaction hash)
0x202608d2b831f15abc38c381c7a87b24686940b11487797a9d6b368a889b3316
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T18:48:12+00:00
- Bitcoin block
- 960448
- Canonical record hash
sha256:62eab457fffe09717150b5fcee76aeca387b9d7f7e321225ae4120bc25570dda- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLCK41056512
- Bitcoin block existence check
- https://blockstream.info/api/block/960448