ISRC SEWDL9201717
Verified recording
SEWDL9201717 is “Hymn: Largo cantabile” by Charles Ives,
registered on the CopyrightChains blockchain with CopyrightID
0x3d96a5a1c0324f091c3886551e605ab42284822f758b1dca238e3490d3ce7cfd and independently timestamped
in Bitcoin block 960455 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL9201717.
Recording identifiers
- ISRC
- SEWDL9201717
- Title
- Hymn: Largo cantabile
- Artist
- Charles Ives
- CopyrightID (CopyrightChains transaction hash)
0x3d96a5a1c0324f091c3886551e605ab42284822f758b1dca238e3490d3ce7cfd
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T19:53:13+00:00
- Bitcoin block
- 960455
- Canonical record hash
sha256:5d05fd1bcc3d0a9b102ee22308bfe7ea09de0a9bab0c61c6b7a26eb33ab7b53c- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL9201717
- Bitcoin block existence check
- https://blockstream.info/api/block/960455
Full record
Track page: Hymn: Largo cantabile · Machine-readable JSON-LD