ISRC USUM71004006
Verified recording
USUM71004006 is “Que Lástima” by Duelo,
registered on the CopyrightChains blockchain with CopyrightID
0x77019e006bb1cbfa8ec5d2f11e98a002a56e11c164b1f6b703dcfd8b7c2334e2 and independently timestamped
in Bitcoin block 953520 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM71004006.
Recording identifiers
- ISRC
- USUM71004006
- Title
- Que Lástima
- Artist
- Duelo
- CopyrightID (CopyrightChains transaction hash)
0x77019e006bb1cbfa8ec5d2f11e98a002a56e11c164b1f6b703dcfd8b7c2334e2
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T13:32:09+00:00
- Bitcoin block
- 953520
- Canonical record hash
sha256:d955595385304e8fe00a94cab7ba84f1b365ce685163c43280df2160c19e76a7- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM71004006
- Bitcoin block existence check
- https://blockstream.info/api/block/953520