ISRC USC4R1604534
Verified recording
USC4R1604534 is “Yesterdays” by Lee Konitz,
registered on the CopyrightChains blockchain with CopyrightID
0xaa5d8662e9a69d628336e303cc6f212ad1377bf033efa6280b0e18248b99e6ec and independently timestamped
in Bitcoin block 960403 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USC4R1604534.
Recording identifiers
- ISRC
- USC4R1604534
- Title
- Yesterdays
- Artist
- Lee Konitz
- CopyrightID (CopyrightChains transaction hash)
0xaa5d8662e9a69d628336e303cc6f212ad1377bf033efa6280b0e18248b99e6ec
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T13:04:34+00:00
- Bitcoin block
- 960403
- Canonical record hash
sha256:313c2d24e386823afe8b3dd22b92976e54f86e9b16e22abc3a44caf235f774e9- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USC4R1604534
- Bitcoin block existence check
- https://blockstream.info/api/block/960403