ISRC US2BR9701748
Verified recording
US2BR9701748 is “Sobre Un Tema Triste” by Oscar D'León,
registered on the CopyrightChains blockchain with CopyrightID
0x8800f4474241c4dbb0edebd1fdd387f45bfe7f6a19bc87f7b54ae372a6304b5c and independently timestamped
in Bitcoin block 960321 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2BR9701748.
Recording identifiers
- ISRC
- US2BR9701748
- Title
- Sobre Un Tema Triste
- Artist
- Oscar D'León
- CopyrightID (CopyrightChains transaction hash)
0x8800f4474241c4dbb0edebd1fdd387f45bfe7f6a19bc87f7b54ae372a6304b5c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T22:27:30+00:00
- Bitcoin block
- 960321
- Canonical record hash
sha256:92a919bbdd67a11740ad2f09d580d3978742d83fc5689386a726062b47e569fd- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2BR9701748
- Bitcoin block existence check
- https://blockstream.info/api/block/960321