ISRC USRO21010014
Verified recording
USRO21010014 is “The Mystery of Felix/End Credits” by Jan A.P. Kaczmarek,
registered on the CopyrightChains blockchain with CopyrightID
0x5e2ff8921eecb4bfe75c32b33643615a9d6191a57ed7747290da37afa3acd3ba 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/USRO21010014.
Recording identifiers
- ISRC
- USRO21010014
- Title
- The Mystery of Felix/End Credits
- Artist
- Jan A.P. Kaczmarek
- CopyrightID (CopyrightChains transaction hash)
0x5e2ff8921eecb4bfe75c32b33643615a9d6191a57ed7747290da37afa3acd3ba
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:413bbc5b16a66f0e17424f30bdc87395bab4184567011146c9184156ae9177eb- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRO21010014
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: The Mystery of Felix/End Credits · Machine-readable JSON-LD