ISRC GBLGL1249689
Verified recording
GBLGL1249689 is “Last Spring” by Johann Halvorsen,
registered on the CopyrightChains blockchain with CopyrightID
0xd37dc75506e587f8027a40e111d8ec4700f644b13c1e4883f53f67f97fe566a2 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/GBLGL1249689.
Recording identifiers
- ISRC
- GBLGL1249689
- Title
- Last Spring
- Artist
- Johann Halvorsen
- CopyrightID (CopyrightChains transaction hash)
0xd37dc75506e587f8027a40e111d8ec4700f644b13c1e4883f53f67f97fe566a2
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:47cbaa0172b019ed5da6f0dcfeb4f10fbc2d4354a7b8e36e8e2605dbac4e7950- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLGL1249689
- Bitcoin block existence check
- https://blockstream.info/api/block/957118