Pith Number

pith:U5DLR6QN

pith:2013:U5DLR6QN7JZ6HIMELH6M4LKVML

not attested not anchored not stored refs pending

Existence and uniqueness for planar anisotropic and crystalline curvature flow

Antonin Chambolle (CMAP), Matteo Novaga

arxiv:1302.2216 v1 · 2013-02-09 · 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{U5DLR6QN7JZ6HIMELH6M4LKVML}

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	2026-05-18T03:34:01.967372Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a746b8fa0dfa73e3a18459fcce2d5562c823fa89ada068ec11fb96ad26f44b54

Aliases

arxiv: 1302.2216 · arxiv_version: 1302.2216v1 · doi: 10.48550/arxiv.1302.2216 · pith_short_12: U5DLR6QN7JZ6 · pith_short_16: U5DLR6QN7JZ6HIME · pith_short_8: U5DLR6QN

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/U5DLR6QN7JZ6HIMELH6M4LKVML \
  | 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: a746b8fa0dfa73e3a18459fcce2d5562c823fa89ada068ec11fb96ad26f44b54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "facebb8ca1d3a91dd9f91e9800cc4ddcf0871f42b5d7bb1bb9f8daaf62360a90",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-02-09T11:08:53Z",
    "title_canon_sha256": "5d1d43c850d912bf72bdc099ad99bfa330ce1ed9968367f14acdde9abe20bee7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.2216",
    "kind": "arxiv",
    "version": 1
  }
}