ISRC AUFFF0800181
Verified recording
AUFFF0800181 is “Introduction, Theme and Variations, Op. 253: Allegretto” by Joseph Küffner,
registered on the CopyrightChains blockchain with CopyrightID
0xb6f40f865b018a9780aa158b444234f465c01f6a593eb58f7ee877a676123e60 and independently timestamped
in Bitcoin block 960368 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUFFF0800181.
Recording identifiers
- ISRC
- AUFFF0800181
- Title
- Introduction, Theme and Variations, Op. 253: Allegretto
- Artist
- Joseph Küffner
- CopyrightID (CopyrightChains transaction hash)
0xb6f40f865b018a9780aa158b444234f465c01f6a593eb58f7ee877a676123e60
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T08:26:41+00:00
- Bitcoin block
- 960368
- Canonical record hash
sha256:e9bfffa51dbdafa177bde222d7f202cc3b57eee641f8cb906090e4fe40b37324- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUFFF0800181
- Bitcoin block existence check
- https://blockstream.info/api/block/960368
Full record
Track page: Introduction, Theme and Variations, Op. 253: Allegretto · Machine-readable JSON-LD