Pith Number

pith:YDIGFH27

pith:2010:YDIGFH27ZBG5F7JSYTKIJ7E7EZ

not attested not anchored not stored refs pending

Robust Coin Flipping

Gene S. Kopp, John D. Wiltshire-Gordon

arxiv:1009.4188 v3 · 2010-09-21 · cs.CC · cs.CR · cs.IT · math.IT · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YDIGFH27ZBG5F7JSYTKIJ7E7EZ}

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	2026-05-18T02:25:12.314028Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0d0629f5fc84dd2fd32c4d484fc9f266460f75bfe93eaa13305ddd1396fb693

Aliases

arxiv: 1009.4188 · arxiv_version: 1009.4188v3 · doi: 10.48550/arxiv.1009.4188 · pith_short_12: YDIGFH27ZBG5 · pith_short_16: YDIGFH27ZBG5F7JS · pith_short_8: YDIGFH27

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/YDIGFH27ZBG5F7JSYTKIJ7E7EZ \
  | 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: c0d0629f5fc84dd2fd32c4d484fc9f266460f75bfe93eaa13305ddd1396fb693

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70c8b77376251dd9072ede07f22fb96fe612e42653f0a40278213b07209a807f",
    "cross_cats_sorted": [
      "cs.CR",
      "cs.IT",
      "math.IT",
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2010-09-21T19:59:16Z",
    "title_canon_sha256": "1d52ea9040bd13f26625616611931d6e40b230b922a0ff8ee08b7ce24456bfdf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.4188",
    "kind": "arxiv",
    "version": 3
  }
}