Pith Number

pith:MDAHGPVO

pith:2015:MDAHGPVOA5JNISQYYJHTCV57B5

not attested not anchored not stored refs pending

Deformation of quadrilaterals and addition on elliptic curves

Ivan Izmestiev

arxiv:1501.07157 v1 · 2015-01-28 · math.DS · math.CV · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MDAHGPVOA5JNISQYYJHTCV57B5}

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.

Cited by

1 paper in Pith

Exotic spherical flexible octahedra and counterexamples to the Modified Bellows Conjecture

Receipt and verification

First computed	2026-05-18T02:28:30.051425Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

60c0733eae0752d44a18c24f3157bf0f78ea8798192ef6b57911fbfad3d684e2

Aliases

arxiv: 1501.07157 · arxiv_version: 1501.07157v1 · doi: 10.48550/arxiv.1501.07157 · pith_short_12: MDAHGPVOA5JN · pith_short_16: MDAHGPVOA5JNISQY · pith_short_8: MDAHGPVO

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/MDAHGPVOA5JNISQYYJHTCV57B5 \
  | 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: 60c0733eae0752d44a18c24f3157bf0f78ea8798192ef6b57911fbfad3d684e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5032db3480b269e0fca1327ad7172a719ecb68b470ae88a157dc85be73781004",
    "cross_cats_sorted": [
      "math.CV",
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2015-01-28T15:49:02Z",
    "title_canon_sha256": "f2acdcb4dc591a4ac584fb30e156a9a0c765c43891e1612a644b4c95f54ff71f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.07157",
    "kind": "arxiv",
    "version": 1
  }
}