pith. sign in
Pith Number

pith:5OJIKXPY

pith:2010:5OJIKXPYHLBY73PSO3DKZGOYNX
not attested not anchored not stored refs pending

Two-lit trees for lit-only sigma-game

Hau-wen Huang

arxiv:1010.5846 v3 · 2010-10-28 · math.CO

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{5OJIKXPYHLBY73PSO3DKZGOYNX}

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 2026-05-18T03:48:48.291135Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

eb92855df83ac38fedf276c6ac99d86df190a67d4a5db3e5beb160ba55e44ed2

Aliases

arxiv: 1010.5846 · arxiv_version: 1010.5846v3 · doi: 10.48550/arxiv.1010.5846 · pith_short_12: 5OJIKXPYHLBY · pith_short_16: 5OJIKXPYHLBY73PS · pith_short_8: 5OJIKXPY
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/5OJIKXPYHLBY73PSO3DKZGOYNX \
  | 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: eb92855df83ac38fedf276c6ac99d86df190a67d4a5db3e5beb160ba55e44ed2
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "f65f4db672739beff0af89d2de0e3a60e9978b28796bc6030e8048f9dad567e8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2010-10-28T03:23:21Z",
    "title_canon_sha256": "b121eeb398df2257c940b65fa06e93037fe3382ace3768aed75ed607ad89f9d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.5846",
    "kind": "arxiv",
    "version": 3
  }
}