ISRC DEF058731854
Verified recording
DEF058731854 is “Symphony No. 9: IV. Adagio. Sehr langsam und noch zurückhaltend - Live at Konzerthaus, Vienna, 1987” by Gustav Mahler,
registered on the CopyrightChains blockchain with CopyrightID
0x1329a5b70e639d0066cabd93a35d6c7341aa9f2ace6dd21a6f82dc17c314a655 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058731854.
Recording identifiers
- ISRC
- DEF058731854
- Title
- Symphony No. 9: IV. Adagio. Sehr langsam und noch zurückhaltend - Live at Konzerthaus, Vienna, 1987
- Artist
- Gustav Mahler
- CopyrightID (CopyrightChains transaction hash)
0x1329a5b70e639d0066cabd93a35d6c7341aa9f2ace6dd21a6f82dc17c314a655
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:a8b0f593886a41828650193c45011138307c6dff192bb40beec40d997aa7a198- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058731854
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Symphony No. 9: IV. Adagio. Sehr langsam und noch zurückhaltend - Live at Konzerthaus, Vienna, 1987 · Machine-readable JSON-LD