ISRC USUM72200993
Verified recording
USUM72200993 is “Back Words” by Jon Langston,
registered on the CopyrightChains blockchain with CopyrightID
0x227da6dc6dc122f6b2ecd91866208652b312e0db475b9532d968d0bc9e9a3bd0 and independently timestamped
in Bitcoin block 953513 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72200993.
Recording identifiers
- ISRC
- USUM72200993
- Title
- Back Words
- Artist
- Jon Langston
- CopyrightID (CopyrightChains transaction hash)
0x227da6dc6dc122f6b2ecd91866208652b312e0db475b9532d968d0bc9e9a3bd0
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:47:07+00:00
- Bitcoin block
- 953513
- Canonical record hash
sha256:5f71b654df6728d88a5712b1f324038f491bd519fbe857c0a2e677128b374a7f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72200993
- Bitcoin block existence check
- https://blockstream.info/api/block/953513