ISRC GBLLH1900397

Verified recording

GBLLH1900397 is “Tribute to J. J. Johnson for Five Trombones, Piano, Percussion and Double Bass: II. Yesteryears” by Robert Elkjer, registered on the CopyrightChains blockchain with CopyrightID 0xd2ecea7522d386d7b6ce6ea0317ed9d26631f883326f062757a333ed738dc2bd and independently timestamped in Bitcoin block 960229 on 2026-07-30. Verify the canonical record, hash, and Bitcoin attestation at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH1900397.

Recording identifiers

ISRC
GBLLH1900397
Title
Tribute to J. J. Johnson for Five Trombones, Piano, Percussion and Double Bass: II. Yesteryears
Artist
Robert Elkjer
CopyrightID (CopyrightChains transaction hash)
0xd2ecea7522d386d7b6ce6ea0317ed9d26631f883326f062757a333ed738dc2bd

Dual-chain proof evidence

Bitcoin-attested timestamp
2026-07-30T08:30:10+00:00
Bitcoin block
960229
Canonical record hash
sha256:9a5151daded3e18b43d80f168543b7f5e2ac1e2d1a0e9ec59fa7418cee22c721
Verification API (6-check server-side result)
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH1900397
Bitcoin block existence check
https://blockstream.info/api/block/960229

Full record

Track page: Tribute to J. J. Johnson for Five Trombones, Piano, Percussion and Double Bass: II. Yesteryears · Machine-readable JSON-LD