Pith Number

pith:UG6JBHZW

pith:2015:UG6JBHZWBTQMELHHXHY5OR67VN

not attested not anchored not stored refs pending

When waiting moves you in scoring combinatorial games

Carlos P. Santos, Richard J. Nowakowski, Urban Larsson

arxiv:1505.01907 v1 · 2015-05-08 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UG6JBHZWBTQMELHHXHY5OR67VN}

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	2026-05-18T02:16:38.540730Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1bc909f360ce0c22ce7b9f1d747dfab41510d3615aedbf07793e3606cd267ba

Aliases

arxiv: 1505.01907 · arxiv_version: 1505.01907v1 · doi: 10.48550/arxiv.1505.01907 · pith_short_12: UG6JBHZWBTQM · pith_short_16: UG6JBHZWBTQMELHH · pith_short_8: UG6JBHZW

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/UG6JBHZWBTQMELHHXHY5OR67VN \
  | 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: a1bc909f360ce0c22ce7b9f1d747dfab41510d3615aedbf07793e3606cd267ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "438e408f33b5c42578e380f0cbf157e0dcdc849f25fb08d5801082360fb89045",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-05-08T01:57:50Z",
    "title_canon_sha256": "5fe3e5a26f80fafb57e7c3158227aea54267422c230f28dcd331996230c2fae9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.01907",
    "kind": "arxiv",
    "version": 1
  }
}