ISRC JPI700108307
Verified recording
JPI700108307 is “Once Upon a Summertime” by European Jazz Trio,
registered on the CopyrightChains blockchain with CopyrightID
0x9eb370f2ae2f68792bf833e48a586912816e3ce8e770eda4639b6602018a9c0a and independently timestamped
in Bitcoin block 960494 on 2026-08-01.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI700108307.
Recording identifiers
- ISRC
- JPI700108307
- Title
- Once Upon a Summertime
- Artist
- European Jazz Trio
- CopyrightID (CopyrightChains transaction hash)
0x9eb370f2ae2f68792bf833e48a586912816e3ce8e770eda4639b6602018a9c0a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-08-01T01:44:32+00:00
- Bitcoin block
- 960494
- Canonical record hash
sha256:ef9d532f367692c17ccafde27c63716631041dc9261b89a41266bdeac33ca09c- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI700108307
- Bitcoin block existence check
- https://blockstream.info/api/block/960494
Full record
Track page: Once Upon a Summertime · Machine-readable JSON-LD