ISRC USUM70974195
Verified recording
USUM70974195 is “Don't Come Back Knockin'” by Buddy Holly,
registered on the CopyrightChains blockchain with CopyrightID
0xe3b02bfe69019d0234d23ca6799e8e530f46dc122d17cefba3e7ff4a97cb7286 and independently timestamped
in Bitcoin block 960334 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM70974195.
Recording identifiers
- ISRC
- USUM70974195
- Title
- Don't Come Back Knockin'
- Artist
- Buddy Holly
- CopyrightID (CopyrightChains transaction hash)
0xe3b02bfe69019d0234d23ca6799e8e530f46dc122d17cefba3e7ff4a97cb7286
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T02:19:15+00:00
- Bitcoin block
- 960334
- Canonical record hash
sha256:68dd02aabadfd477d4c5945446f1e8600d2d73fcfc086c84c5d4e735930811af- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM70974195
- Bitcoin block existence check
- https://blockstream.info/api/block/960334
Full record
Track page: Don't Come Back Knockin' · Machine-readable JSON-LD