Pith Number

pith:CEH4MJ4S

pith:2014:CEH4MJ4SGHOXQ6BKKKJX3D7HNQ

not attested not anchored not stored refs pending

Calculation of interface curvature with the level-set method

Karl Yngve Lerv{\aa}g

arxiv:1407.7340 v2 · 2014-07-28 · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CEH4MJ4SGHOXQ6BKKKJX3D7HNQ}

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	2026-05-18T02:46:22.445390Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

110fc6279231dd78782a52937d8fe76c17bc47605ba293df909f13b1594f7723

Aliases

arxiv: 1407.7340 · arxiv_version: 1407.7340v2 · doi: 10.48550/arxiv.1407.7340 · pith_short_12: CEH4MJ4SGHOX · pith_short_16: CEH4MJ4SGHOXQ6BK · pith_short_8: CEH4MJ4S

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/CEH4MJ4SGHOXQ6BKKKJX3D7HNQ \
  | 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: 110fc6279231dd78782a52937d8fe76c17bc47605ba293df909f13b1594f7723

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "20f5eced0ed4c575f8e1e411962dde99dfa39284ceea9e8f4d1f16ecbb27f27e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2014-07-28T07:10:39Z",
    "title_canon_sha256": "c4cefc10f3071d12c959f4db9c6cd55fd3f1560f72058f14e84004d41881d159"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.7340",
    "kind": "arxiv",
    "version": 2
  }
}