ISRC GBUM71307004
Verified recording
GBUM71307004 is “Nelson & Winnie” by Alex Heffes,
registered on the CopyrightChains blockchain with CopyrightID
0x777831ec41eaa8d6f018fb81c9e2412a37a88a909c9a5dc0aee6a7e9c2a09684 and independently timestamped
in Bitcoin block 960138 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM71307004.
Recording identifiers
- ISRC
- GBUM71307004
- Title
- Nelson & Winnie
- Artist
- Alex Heffes
- CopyrightID (CopyrightChains transaction hash)
0x777831ec41eaa8d6f018fb81c9e2412a37a88a909c9a5dc0aee6a7e9c2a09684
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T19:35:34+00:00
- Bitcoin block
- 960138
- Canonical record hash
sha256:bd3d2ca81f893e2865fd403ab8489c346ba1cb0fa0fc5993787e181a58c25fe1- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM71307004
- Bitcoin block existence check
- https://blockstream.info/api/block/960138