ISRC DEF057700222
Verified recording
DEF057700222 is “Symphony No. 4: I. Bedächtig, nicht eilen” by Gustav Mahler,
registered on the CopyrightChains blockchain with CopyrightID
0x39039ac14220c09d401e3068078a795460c6a403a8e119e99f9b22a44265acbf and independently timestamped
in Bitcoin block 960284 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057700222.
Recording identifiers
- ISRC
- DEF057700222
- Title
- Symphony No. 4: I. Bedächtig, nicht eilen
- Artist
- Gustav Mahler
- CopyrightID (CopyrightChains transaction hash)
0x39039ac14220c09d401e3068078a795460c6a403a8e119e99f9b22a44265acbf
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T17:23:26+00:00
- Bitcoin block
- 960284
- Canonical record hash
sha256:e558f3b415ddb3e3ca6b3a0ae5f6c146ab3531a8f2d507ecb28ab394e614b48e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057700222
- Bitcoin block existence check
- https://blockstream.info/api/block/960284
Full record
Track page: Symphony No. 4: I. Bedächtig, nicht eilen · Machine-readable JSON-LD