ISRC US83Z1908822
Verified recording
US83Z1908822 is “Yesterdays” by Medsound,
registered on the CopyrightChains blockchain with CopyrightID
0x7c5183deb6b2e86c9520674da0783e91809e8ed31f81f2c4f060665990442172 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US83Z1908822.
Recording identifiers
- ISRC
- US83Z1908822
- Title
- Yesterdays
- Artist
- Medsound
- CopyrightID (CopyrightChains transaction hash)
0x7c5183deb6b2e86c9520674da0783e91809e8ed31f81f2c4f060665990442172
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:a5a6fd06245b498680f38b2ad782614c3ae84a566a78c331cc06753ccf37b222- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US83Z1908822
- Bitcoin block existence check
- https://blockstream.info/api/block/957118