ISRC NLY331306533
Verified recording
NLY331306533 is “Duos for Two Cellos, Op. 51 No. 1 in A Major: III. Allegretto” by Jacques Offenbach,
registered on the CopyrightChains blockchain with CopyrightID
0x1113bfdc0b549f5f796fbb190d2bfe5f9f3ee616c9a08684a86818f7951031ac and independently timestamped
in Bitcoin block 960441 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331306533.
Recording identifiers
- ISRC
- NLY331306533
- Title
- Duos for Two Cellos, Op. 51 No. 1 in A Major: III. Allegretto
- Artist
- Jacques Offenbach
- CopyrightID (CopyrightChains transaction hash)
0x1113bfdc0b549f5f796fbb190d2bfe5f9f3ee616c9a08684a86818f7951031ac
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T17:29:52+00:00
- Bitcoin block
- 960441
- Canonical record hash
sha256:7c81caff2862d5711435c0d968a0516feae2ad5396731bc51d500cd3c4d64fc5- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331306533
- Bitcoin block existence check
- https://blockstream.info/api/block/960441
Full record
Track page: Duos for Two Cellos, Op. 51 No. 1 in A Major: III. Allegretto · Machine-readable JSON-LD