Pith Number

pith:LDBEN6F2

pith:2012:LDBEN6F27TA33EIIS6F52MRFFO

not attested not anchored not stored refs pending

On a formula of Daskalopoulos, Hamilton and Sesum

Bennett Chow

arxiv:1209.1784 v1 · 2012-09-09 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LDBEN6F27TA33EIIS6F52MRFFO}

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	2026-05-18T03:45:54.397830Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58c246f8bafcc1bd9108978bdd32252b831a2951ca700c724988f14810ca997d

Aliases

arxiv: 1209.1784 · arxiv_version: 1209.1784v1 · doi: 10.48550/arxiv.1209.1784 · pith_short_12: LDBEN6F27TA3 · pith_short_16: LDBEN6F27TA33EII · pith_short_8: LDBEN6F2

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/LDBEN6F27TA33EIIS6F52MRFFO \
  | 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: 58c246f8bafcc1bd9108978bdd32252b831a2951ca700c724988f14810ca997d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a57460a80a0e4151d2d3b86314b8cc74976596b8cb389c3d96be5548f7d108d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2012-09-09T07:43:14Z",
    "title_canon_sha256": "351f5c9c87612cbd61ed323106b9c240f7856a6b25a1467d8a0cfbb333e82948"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.1784",
    "kind": "arxiv",
    "version": 1
  }
}