Pith Number

pith:FNDDADKG

pith:2011:FNDDADKGLM2RH6ZK2QEEDVSF7D

not attested not anchored not stored refs pending

On Legendrian Graphs

Danielle O'Donnol, Elena Pavelescu

arxiv:1108.2281 v1 · 2011-08-10 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FNDDADKGLM2RH6ZK2QEEDVSF7D}

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	2026-05-18T02:21:42.286403Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b46300d465b3513fb2ad40841d645f8f5bc089b601d1fb213d96851f5c44f44

Aliases

arxiv: 1108.2281 · arxiv_version: 1108.2281v1 · doi: 10.48550/arxiv.1108.2281 · pith_short_12: FNDDADKGLM2R · pith_short_16: FNDDADKGLM2RH6ZK · pith_short_8: FNDDADKG

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/FNDDADKGLM2RH6ZK2QEEDVSF7D \
  | 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: 2b46300d465b3513fb2ad40841d645f8f5bc089b601d1fb213d96851f5c44f44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f07d48e938a6352f5b39215f2241b5b7076f8f6cf40c1b5a0d85f2e92b2a43a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2011-08-10T20:21:50Z",
    "title_canon_sha256": "7d671e077b8b2787007c8f1ec16d4c17298a086e97d8e8cebdab5ab118298c36"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.2281",
    "kind": "arxiv",
    "version": 1
  }
}