ISRC GBSUW2255487
Verified recording
GBSUW2255487 is “S'posin'” by Johnny Hartman,
registered on the CopyrightChains blockchain with CopyrightID
0xe5de74ec9f8e9f4a865d7bdd399dcf80ca9283c04814ba427a194a3a1cff56cc and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSUW2255487.
Recording identifiers
- ISRC
- GBSUW2255487
- Title
- S'posin'
- Artist
- Johnny Hartman
- CopyrightID (CopyrightChains transaction hash)
0xe5de74ec9f8e9f4a865d7bdd399dcf80ca9283c04814ba427a194a3a1cff56cc
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:f1c119bcc3a8e21c848a7fb4a4a4e45cad00a243a5afdfeb07072fceaef896a9- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSUW2255487
- Bitcoin block existence check
- https://blockstream.info/api/block/957118