ISRC SEWDL0517801
Verified recording
SEWDL0517801 is “Symphony No. 3 for Soprano and Orchestra, "Symphony of Sorrowful Songs" (1976): I. Lento - Sostenuto tranquillo ma cantabile” by Henryk Górecki,
registered on the CopyrightChains blockchain with CopyrightID
0x457cdec20abd8baeb7024ba49a1198ef7e2ac815a0bb7908dfeb83f9c72ebc24 and independently timestamped
in Bitcoin block 960144 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0517801.
Recording identifiers
- ISRC
- SEWDL0517801
- Title
- Symphony No. 3 for Soprano and Orchestra, "Symphony of Sorrowful Songs" (1976): I. Lento - Sostenuto tranquillo ma cantabile
- Artist
- Henryk Górecki
- CopyrightID (CopyrightChains transaction hash)
0x457cdec20abd8baeb7024ba49a1198ef7e2ac815a0bb7908dfeb83f9c72ebc24
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T21:09:47+00:00
- Bitcoin block
- 960144
- Canonical record hash
sha256:a1d35b7975bc6cbd7b6c2338604609213d5a42a1d760bb6bf7d32151f68ff0d1- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0517801
- Bitcoin block existence check
- https://blockstream.info/api/block/960144
Full record
Track page: Symphony No. 3 for Soprano and Orchestra, "Symphony of Sorrowful Songs" (1976): I. Lento - Sostenuto tranquillo ma cantabile · Machine-readable JSON-LD