ISRC NLB638600185
Verified recording
NLB638600185 is “Take This Waltz” by Leonard Cohen,
registered on the CopyrightChains blockchain with CopyrightID
0xb405cae9410aba95fd07dd96fecdc53ffa3c5d0db2354b2bcdc8a55f20c90a8e and independently timestamped
in Bitcoin block 956302 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB638600185.
Recording identifiers
- ISRC
- NLB638600185
- Title
- Take This Waltz
- Artist
- Leonard Cohen
- CopyrightID (CopyrightChains transaction hash)
0xb405cae9410aba95fd07dd96fecdc53ffa3c5d0db2354b2bcdc8a55f20c90a8e
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:4518c383bd82c42ff3e5b8d8f41b7c38039bea414545df7316f34db300687b10- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB638600185
- Bitcoin block existence check
- https://blockstream.info/api/block/956302