ISRC GBURF1100190
Verified recording
GBURF1100190 is “Speak Low” by Lotte Lenya,
registered on the CopyrightChains blockchain with CopyrightID
0x86bea0a76fa0919207264e7da918af8084dd24ba75faa203dffba15f198c2b69 and independently timestamped
in Bitcoin block 960210 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBURF1100190.
Recording identifiers
- ISRC
- GBURF1100190
- Title
- Speak Low
- Artist
- Lotte Lenya
- CopyrightID (CopyrightChains transaction hash)
0x86bea0a76fa0919207264e7da918af8084dd24ba75faa203dffba15f198c2b69
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T05:21:45+00:00
- Bitcoin block
- 960210
- Canonical record hash
sha256:8b523d03c459a1acbb1b69c59de8f35466c5a80e0a3ce6c121a287fea1abff84- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBURF1100190
- Bitcoin block existence check
- https://blockstream.info/api/block/960210