Pith Number

pith:SITD5PRN

pith:2017:SITD5PRN44DKMU3EK4BDNO3IN2

not attested not anchored not stored refs pending

Computing optimal strategy for cop in the game of Cop v.s. Gambler

Shen-Fu Tsai

arxiv:1701.00187 v2 · 2017-01-01 · math.CO · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SITD5PRN44DKMU3EK4BDNO3IN2}

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	2026-05-18T00:53:04.694942Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

92263ebe2de706a65364570236bb686ebf2d1aa13e1889f0e56f6f66b5faac50

Aliases

arxiv: 1701.00187 · arxiv_version: 1701.00187v2 · doi: 10.48550/arxiv.1701.00187 · pith_short_12: SITD5PRN44DK · pith_short_16: SITD5PRN44DKMU3E · pith_short_8: SITD5PRN

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/SITD5PRN44DKMU3EK4BDNO3IN2 \
  | 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: 92263ebe2de706a65364570236bb686ebf2d1aa13e1889f0e56f6f66b5faac50

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5705aa21e14a934f6fbf45b9adddb731e0cc4b91b2163badd9037936d9bbd73",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-01-01T02:59:48Z",
    "title_canon_sha256": "cbe5d0b1409914d05aa0f47ef4ef025d7238c1be46aebd5dd9c541e0ab37b4ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.00187",
    "kind": "arxiv",
    "version": 2
  }
}