Pith Number

pith:FL2RPOKS

pith:2003:FL2RPOKST72R6ZADEDWDVDO5XP

not attested not anchored not stored refs pending

Complexity and hierarchical game of life

Boris Zaltzman, Eugene Tsvetkov, Isaak Rubinstein, Ivan Gotz

arxiv:q-bio/0310004 v1 · 2003-10-06 · q-bio.PE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FL2RPOKST72R6ZADEDWDVDO5XP}

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	2026-05-18T01:38:03.979263Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2af517b9529ff51f640320ec3a8dddbbd58bef0d9a6c5f51350c5aff1ddd010d

Aliases

arxiv: q-bio/0310004 · arxiv_version: q-bio/0310004v1 · doi: 10.48550/arxiv.q-bio/0310004 · pith_short_12: FL2RPOKST72R · pith_short_16: FL2RPOKST72R6ZAD · pith_short_8: FL2RPOKS

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/FL2RPOKST72R6ZADEDWDVDO5XP \
  | 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: 2af517b9529ff51f640320ec3a8dddbbd58bef0d9a6c5f51350c5aff1ddd010d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e13e245a7729c1353e0c6a2a27c081c5bb735c834494fb2b7bdeb991557d6a8e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2003-10-06T20:07:44Z",
    "title_canon_sha256": "6a13ed8039c3f0e7b4c44cfb88df89dbbe2db01b85eeda730d5fe511492850d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "q-bio/0310004",
    "kind": "arxiv",
    "version": 1
  }
}