ISRC GBUM71405848
Verified recording
GBUM71405848 is “Two Waltzes in A Major, Op. 39, No. 15 & Op. 52, No. 6 (Arr. Stephan Koncz)” by Johannes Brahms,
registered on the CopyrightChains blockchain with CopyrightID
0xba1d1610d441fe730cd47aa1a77965fafe08438cbdecfebd0f2a61480c872f0b 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/GBUM71405848.
Recording identifiers
- ISRC
- GBUM71405848
- Title
- Two Waltzes in A Major, Op. 39, No. 15 & Op. 52, No. 6 (Arr. Stephan Koncz)
- Artist
- Johannes Brahms
- CopyrightID (CopyrightChains transaction hash)
0xba1d1610d441fe730cd47aa1a77965fafe08438cbdecfebd0f2a61480c872f0b
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:602475e8d6a3344542b9d624c8d39c79cbf6247611545f994264088f415ccfee- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM71405848
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Two Waltzes in A Major, Op. 39, No. 15 & Op. 52, No. 6 (Arr. Stephan Koncz) · Machine-readable JSON-LD