ISRC US3M59454808
Verified recording
US3M59454808 is “Old Friends (Part II)” by Stephen Sondheim,
registered on the CopyrightChains blockchain with CopyrightID
0xa1c7a2222908799c4bca83c3fe1d62f2a76458a8269b62c08c7a79da5f775cb7 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3M59454808.
Recording identifiers
- ISRC
- US3M59454808
- Title
- Old Friends (Part II)
- Artist
- Stephen Sondheim
- CopyrightID (CopyrightChains transaction hash)
0xa1c7a2222908799c4bca83c3fe1d62f2a76458a8269b62c08c7a79da5f775cb7
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:1d2eddbf8b0b609d973707fff480cbc616250d56e49bd8656ba30a36e126b8ef- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3M59454808
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Old Friends (Part II) · Machine-readable JSON-LD