ISRC DEFU71911907
Verified recording
DEFU71911907 is “Improv Interlude 3” by Constantinople,
registered on the CopyrightChains blockchain with CopyrightID
0x94e298677d163c8d701deca0fbd29f627e7f49489e4ed85ff94960e90428c323 and independently timestamped
in Bitcoin block 960144 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEFU71911907.
Recording identifiers
- ISRC
- DEFU71911907
- Title
- Improv Interlude 3
- Artist
- Constantinople
- CopyrightID (CopyrightChains transaction hash)
0x94e298677d163c8d701deca0fbd29f627e7f49489e4ed85ff94960e90428c323
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T21:09:47+00:00
- Bitcoin block
- 960144
- Canonical record hash
sha256:a1fae1c8f8725ffffd9bf9c715d0b375ddf2c4e1909319a59db0221158ccd3cc- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEFU71911907
- Bitcoin block existence check
- https://blockstream.info/api/block/960144