Pith Number

pith:UND722LK

pith:2004:UND722LK6IXKHVAWHLJTZCJDZZ

not attested not anchored not stored refs pending

A conformal energy for simplicial surfaces

Alexander I. Bobenko

arxiv:math/0406128 v1 · 2004-06-07 · math.DG · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UND722LK6IXKHVAWHLJTZCJDZZ}

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	2026-05-18T00:36:44.145570Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a347fd696af22ea3d4163ad33c8923ce500a09dd31b075cfbeb1271e92c30363

Aliases

arxiv: math/0406128 · arxiv_version: math/0406128v1 · doi: 10.48550/arxiv.math/0406128 · pith_short_12: UND722LK6IXK · pith_short_16: UND722LK6IXKHVAW · pith_short_8: UND722LK

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/UND722LK6IXKHVAWHLJTZCJDZZ \
  | 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: a347fd696af22ea3d4163ad33c8923ce500a09dd31b075cfbeb1271e92c30363

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a758fb92bb5cb30f639237f5a53810396f695fcf909d0a3475fd4c1bade5353b",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "",
    "primary_cat": "math.DG",
    "submitted_at": "2004-06-07T21:06:15Z",
    "title_canon_sha256": "7fa86880521dfecad3bf8371a6264445f4ec24078eaac50c37d063bfcb509829"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0406128",
    "kind": "arxiv",
    "version": 1
  }
}