ISRC DEF056701012
Verified recording
DEF056701012 is “Symphony No. 9 in D: IV. Adagio (Sehr langsam)” by Gustav Mahler,
registered on the CopyrightChains blockchain with CopyrightID
0xb276c37863676332522b357bc4965550ac53cedf1f8f589ac28891d713469e12 and independently timestamped
in Bitcoin block 960403 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056701012.
Recording identifiers
- ISRC
- DEF056701012
- Title
- Symphony No. 9 in D: IV. Adagio (Sehr langsam)
- Artist
- Gustav Mahler
- CopyrightID (CopyrightChains transaction hash)
0xb276c37863676332522b357bc4965550ac53cedf1f8f589ac28891d713469e12
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T13:04:34+00:00
- Bitcoin block
- 960403
- Canonical record hash
sha256:a8e310a1cc448a90cd95d26b62b27f2098d60d60bac44525591783b647e38e28- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056701012
- Bitcoin block existence check
- https://blockstream.info/api/block/960403
Full record
Track page: Symphony No. 9 in D: IV. Adagio (Sehr langsam) · Machine-readable JSON-LD