ISRC DEF058703961
Verified recording
DEF058703961 is “Symphony No. 1 in D Major: I. Langsam, schleppend – Immer sehr gemächlich - Live” by Gustav Mahler,
registered on the CopyrightChains blockchain with CopyrightID
0xd4658c4379c750b48110eff5d0529af2f5ad48f6f1d27ed6be3e25725feac134 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/DEF058703961.
Recording identifiers
- ISRC
- DEF058703961
- Title
- Symphony No. 1 in D Major: I. Langsam, schleppend – Immer sehr gemächlich - Live
- Artist
- Gustav Mahler
- CopyrightID (CopyrightChains transaction hash)
0xd4658c4379c750b48110eff5d0529af2f5ad48f6f1d27ed6be3e25725feac134
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:03850a58a01e37b82ee44319bc0a85053e05a2daadee8e84dda8c154a3060ccb- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703961
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Symphony No. 1 in D Major: I. Langsam, schleppend – Immer sehr gemächlich - Live · Machine-readable JSON-LD