Pith Number

pith:3ULQMWHN

pith:2010:3ULQMWHN4D5U37LIR3ALEUEKEL

not attested not anchored not stored refs pending

Acceleration techniques for regularized Newton methods applied to electromagnetic inverse medium scattering problems

Stefan Langer, Thorsten Hohage

arxiv:1003.4472 v1 · 2010-03-23 · 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{3ULQMWHN4D5U37LIR3ALEUEKEL}

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	2026-05-18T02:20:00.774630Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd170658ede0fb4dfd688ec0b2508a22c4e75fc5df6aa52b8ef220472519a6f9

Aliases

arxiv: 1003.4472 · arxiv_version: 1003.4472v1 · doi: 10.48550/arxiv.1003.4472 · pith_short_12: 3ULQMWHN4D5U · pith_short_16: 3ULQMWHN4D5U37LI · pith_short_8: 3ULQMWHN

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/3ULQMWHN4D5U37LIR3ALEUEKEL \
  | 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: dd170658ede0fb4dfd688ec0b2508a22c4e75fc5df6aa52b8ef220472519a6f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "121f27951a8f3625fa1955f7c5095ca3110ad1d9fbe26c1d5b8ee6d5750fb339",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2010-03-23T17:23:23Z",
    "title_canon_sha256": "017fd8e8a7f0ff30a984535d9b1343c31ceed63644218648dd315d43daed45fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.4472",
    "kind": "arxiv",
    "version": 1
  }
}