Pith Number

pith:2GKIAPXB

pith:2019:2GKIAPXB3GUU3TQMNHBZFD7WRS

not attested not anchored not stored refs pending

Nonlinear Iterative Hard Thresholding for Inverse Scattering

Anna C. Gilbert, Howard W. Levinson, John C. Schotland

arxiv:1903.10875 v1 · 2019-03-22 · math.NA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2GKIAPXB3GUU3TQMNHBZFD7WRS}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-17T23:50:17.425968Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d194803ee1d9a94dce0c69c3928ff68ca9524821c6acf92dc29d73334a09add8

Aliases

arxiv: 1903.10875 · arxiv_version: 1903.10875v1 · doi: 10.48550/arxiv.1903.10875 · pith_short_12: 2GKIAPXB3GUU · pith_short_16: 2GKIAPXB3GUU3TQM · pith_short_8: 2GKIAPXB

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/2GKIAPXB3GUU3TQMNHBZFD7WRS \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: d194803ee1d9a94dce0c69c3928ff68ca9524821c6acf92dc29d73334a09add8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8eaeb276b37204c46d0867484570cf569184196dae14d23b4661eded9923c82",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-03-22T19:58:56Z",
    "title_canon_sha256": "94d3ab29c216f98475ed32a6ff221f4dc46f62b4bb776d5ffbc874e3468bf495"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.10875",
    "kind": "arxiv",
    "version": 1
  }
}