ISRC USNO19639509
Verified recording
USNO19639509 is “Ballad for Very Tired and Very Sad Lotus-Eaters” by Fred Hersch,
registered on the CopyrightChains blockchain with CopyrightID
0x97b1d5f8ab8d7224f8570845e6dbcceb813fe3aa4a5a02f3d1a01c76f8867461 and independently timestamped
in Bitcoin block 960397 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNO19639509.
Recording identifiers
- ISRC
- USNO19639509
- Title
- Ballad for Very Tired and Very Sad Lotus-Eaters
- Artist
- Fred Hersch
- CopyrightID (CopyrightChains transaction hash)
0x97b1d5f8ab8d7224f8570845e6dbcceb813fe3aa4a5a02f3d1a01c76f8867461
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T12:24:41+00:00
- Bitcoin block
- 960397
- Canonical record hash
sha256:406f30a05d70472d759263466a3be8def54651c4a2818e23d8f5f6334843b015- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNO19639509
- Bitcoin block existence check
- https://blockstream.info/api/block/960397
Full record
Track page: Ballad for Very Tired and Very Sad Lotus-Eaters · Machine-readable JSON-LD