ISRC GBF079044303
Verified recording
GBF079044303 is “Kammermusik No. 1 with Finale 1921, Op. 24 No. 1 for 12 instruments: 3. Quartett: Sehr langsam und mit Ausdruck” by Paul Hindemith,
registered on the CopyrightChains blockchain with CopyrightID
0xf35afa9bf561c9ba0605baf76548749d78e9b6bc68ad417ca22664892cde1b91 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/GBF079044303.
Recording identifiers
- ISRC
- GBF079044303
- Title
- Kammermusik No. 1 with Finale 1921, Op. 24 No. 1 for 12 instruments: 3. Quartett: Sehr langsam und mit Ausdruck
- Artist
- Paul Hindemith
- CopyrightID (CopyrightChains transaction hash)
0xf35afa9bf561c9ba0605baf76548749d78e9b6bc68ad417ca22664892cde1b91
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T08:26:41+00:00
- Bitcoin block
- 960368
- Canonical record hash
sha256:48e8e5197719936379e816c8f21d9496ba1a5fdbc0fdfcd76fc3bed14a08dfa7- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF079044303
- Bitcoin block existence check
- https://blockstream.info/api/block/960368
Full record
Track page: Kammermusik No. 1 with Finale 1921, Op. 24 No. 1 for 12 instruments: 3. Quartett: Sehr langsam und mit Ausdruck · Machine-readable JSON-LD