Pith Number

pith:PFAQ7UE7

pith:2018:PFAQ7UE7O6VOU2Z72IHSUFDYA6

not attested not anchored not stored refs pending

Motion of level sets by inverse anisotropic mean curvature

Chao Xia, Francesco Della Pietra, Nunzia Gavitone

arxiv:1804.06639 v1 · 2018-04-18 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PFAQ7UE7O6VOU2Z72IHSUFDYA6}

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	2026-05-18T00:18:06.156999Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79410fd09f77aaea6b3fd20f2a147807b1e3d96ddfd41c345ff66b0e8e548335

Aliases

arxiv: 1804.06639 · arxiv_version: 1804.06639v1 · doi: 10.48550/arxiv.1804.06639 · pith_short_12: PFAQ7UE7O6VO · pith_short_16: PFAQ7UE7O6VOU2Z7 · pith_short_8: PFAQ7UE7

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/PFAQ7UE7O6VOU2Z72IHSUFDYA6 \
  | 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: 79410fd09f77aaea6b3fd20f2a147807b1e3d96ddfd41c345ff66b0e8e548335

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dfc79733b871abb8c3adffabd97fef819b60bb92f975e6ee0b616bd91051f27f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-04-18T10:38:31Z",
    "title_canon_sha256": "c7aa97965caa975f108319ff94b9e5b13289381c126172bb75c9bc0c7c687eee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.06639",
    "kind": "arxiv",
    "version": 1
  }
}