Pith Number

pith:YERB7DOA

pith:2022:YERB7DOAHNGWGJBVUHB5ATN6GF

not attested not anchored not stored refs pending

The Shape of Central Quadrilaterals

Ercole Suppa, Stanley Rabinowitz

arxiv:2205.00870 v1 · 2022-04-29 · math.HO · 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{YERB7DOAHNGWGJBVUHB5ATN6GF}

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

More Relationships between a Central Quadrilateral and its Reference Quadrilateral

Receipt and verification

First computed	2026-07-05T04:19:25.675065Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c1221f8dc03b4d632435a1c3d04dbe314b0a0d02fbb11b6dc60a64c0a9b19eac

Aliases

arxiv: 2205.00870 · arxiv_version: 2205.00870v1 · doi: 10.48550/arxiv.2205.00870 · pith_short_12: YERB7DOAHNGW · pith_short_16: YERB7DOAHNGWGJBV · pith_short_8: YERB7DOA

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/YERB7DOAHNGWGJBVUHB5ATN6GF \
  | 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: c1221f8dc03b4d632435a1c3d04dbe314b0a0d02fbb11b6dc60a64c0a9b19eac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04c87dd59fec3bf343eca826f7366a6c8c5d90f054eda740154eea85837e28ef",
    "cross_cats_sorted": [
      "math.MG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2022-04-29T15:14:36Z",
    "title_canon_sha256": "085d6c647356bbb7a79c8b222b1ae986125b6bc4bd249124449948e3aa7a4c27"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2205.00870",
    "kind": "arxiv",
    "version": 1
  }
}