ISRC US5261923165
Verified recording
US5261923165 is “Old Friends” by Grayscale,
registered on the CopyrightChains blockchain with CopyrightID
0xde8cbb8bb86d66943c7e861ca418116e5085bbadcfdd21cb9f53b054b76c25d9 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/US5261923165.
Recording identifiers
- ISRC
- US5261923165
- Title
- Old Friends
- Artist
- Grayscale
- CopyrightID (CopyrightChains transaction hash)
0xde8cbb8bb86d66943c7e861ca418116e5085bbadcfdd21cb9f53b054b76c25d9
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T13:32:09+00:00
- Bitcoin block
- 953520
- Canonical record hash
sha256:d26f0199c0c3cfd3034772e2a109f2a091c998c63e191dd4a96988df9532d72f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US5261923165
- Bitcoin block existence check
- https://blockstream.info/api/block/953520