Pith Number

pith:2G4DXNAM

pith:2019:2G4DXNAM7COGXO4SX2QVP36734

not attested not anchored not stored refs pending

The icosahedra of edge length 1

Alice C. Niemeyer, Ansgar Strzelczyk, Daniel Robertz, Karl-Heinz Brakhage, Wilhelm Plesken

arxiv:1903.08278 v1 · 2019-03-19 · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2G4DXNAM7COGXO4SX2QVP36734}

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	2026-05-17T23:50:49.797969Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1b83bb40cf89c6bbb92bea157efdfdf191dcd7d068dd00fc78d0921b034f28f

Aliases

arxiv: 1903.08278 · arxiv_version: 1903.08278v1 · doi: 10.48550/arxiv.1903.08278 · pith_short_12: 2G4DXNAM7COG · pith_short_16: 2G4DXNAM7COGXO4S · pith_short_8: 2G4DXNAM

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/2G4DXNAM7COGXO4SX2QVP36734 \
  | 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: d1b83bb40cf89c6bbb92bea157efdfdf191dcd7d068dd00fc78d0921b034f28f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5559c2dec7ce5f7c30e4b4633803d4124076f1249b0224459da8d5339d5547ef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2019-03-19T22:33:38Z",
    "title_canon_sha256": "92f478750f4654a49648ae081bc5623cfc353235df74733a8165e1bfaa843b4b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.08278",
    "kind": "arxiv",
    "version": 1
  }
}