Pith Number

pith:NOB36NCT

pith:2018:NOB36NCTKFX4INRJTT52XNHPD7

not attested not anchored not stored refs pending

Bouligand-Landweber iteration for a non-smooth ill-posed problem

Christian Clason, Vu Huu Nhu

arxiv:1803.02290 v3 · 2018-03-06 · math.NA · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NOB36NCTKFX4INRJTT52XNHPD7}

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	2026-05-17T23:41:56.363695Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b83bf3453516fc436299cfbabb4ef1fd8e0519ce7f7de49c935ecb4a543014f

Aliases

arxiv: 1803.02290 · arxiv_version: 1803.02290v3 · doi: 10.48550/arxiv.1803.02290 · pith_short_12: NOB36NCTKFX4 · pith_short_16: NOB36NCTKFX4INRJ · pith_short_8: NOB36NCT

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/NOB36NCTKFX4INRJTT52XNHPD7 \
  | 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: 6b83bf3453516fc436299cfbabb4ef1fd8e0519ce7f7de49c935ecb4a543014f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58529e634d396ffc39d2adb98a8f91bb8efab5cdcb730234c4857c980ddc7478",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-03-06T16:41:49Z",
    "title_canon_sha256": "55bfba3875afae22162f4e467c7ab8661b8fbc59650848ac329901b5a387ee4d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.02290",
    "kind": "arxiv",
    "version": 3
  }
}