Pith Number

pith:NUEXWAP6

pith:2014:NUEXWAP6NEOEQP3CIVIQV7M4OE

not attested not anchored not stored refs pending

Geometric simple connectivity and finitely presented groups

Valentin Poenaru

arxiv:1404.4283 v1 · 2014-04-16 · 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{NUEXWAP6NEOEQP3CIVIQV7M4OE}

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	2026-05-18T02:54:05.757034Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d097b01fe691c483f6245510afd9c711fe87d894ccc697a3bc3a8e5a3c15707

Aliases

arxiv: 1404.4283 · arxiv_version: 1404.4283v1 · doi: 10.48550/arxiv.1404.4283 · pith_short_12: NUEXWAP6NEOE · pith_short_16: NUEXWAP6NEOEQP3C · pith_short_8: NUEXWAP6

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/NUEXWAP6NEOEQP3CIVIQV7M4OE \
  | 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: 6d097b01fe691c483f6245510afd9c711fe87d894ccc697a3bc3a8e5a3c15707

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fabde307ea4e121a2b11dd71d7b139366551a59f855c140f8a4ef85234d6ace6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2014-04-16T15:24:44Z",
    "title_canon_sha256": "33f54177bc623dad55d36c1f6ebfed37c9e4185b7d551f764706aa231b0f6909"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.4283",
    "kind": "arxiv",
    "version": 1
  }
}