ISRC USBL10300279
Verified recording
USBL10300279 is “Why” by Cristian Castro,
registered on the CopyrightChains blockchain with CopyrightID
0x8c26bd1e6dd1e50c6e1c71cadd8790b4c346fe0d1ab004dc8f8bb225eadab22b and independently timestamped
in Bitcoin block 957819 on 2026-07-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBL10300279.
Recording identifiers
- ISRC
- USBL10300279
- Title
- Why
- Artist
- Cristian Castro
- CopyrightID (CopyrightChains transaction hash)
0x8c26bd1e6dd1e50c6e1c71cadd8790b4c346fe0d1ab004dc8f8bb225eadab22b
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-13T07:53:33+00:00
- Bitcoin block
- 957819
- Canonical record hash
sha256:cda27c69cad6396e0900722d4cd3b63271509f6ea27de3acc46140493671e5a6- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBL10300279
- Bitcoin block existence check
- https://blockstream.info/api/block/957819