Pith Number

pith:4KW7ABML

pith:2011:4KW7ABML2L4JE7GLMQ3XRVTPHK

not attested not anchored not stored refs pending

The complexity of flood-filling games on graphs

Alexander Scott, Kitty Meeks

arxiv:1101.5876 v3 · 2011-01-31 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4KW7ABML2L4JE7GLMQ3XRVTPHK}

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	2026-05-18T02:22:41.860931Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2adf0058bd2f8927ccb643778d66f3aae5124825792e6fb85b4307ee5202dd8

Aliases

arxiv: 1101.5876 · arxiv_version: 1101.5876v3 · doi: 10.48550/arxiv.1101.5876 · pith_short_12: 4KW7ABML2L4J · pith_short_16: 4KW7ABML2L4JE7GL · pith_short_8: 4KW7ABML

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/4KW7ABML2L4JE7GLMQ3XRVTPHK \
  | 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: e2adf0058bd2f8927ccb643778d66f3aae5124825792e6fb85b4307ee5202dd8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "652376298cbbddde26580890cded232a407fb9ad3239325e1ab78a319e479236",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2011-01-31T08:42:14Z",
    "title_canon_sha256": "68db243c27aec08d1f4afd676732565b775e5a777fe93788f23deaf258747a51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.5876",
    "kind": "arxiv",
    "version": 3
  }
}