Pith Number

pith:NIUSMG2Z

pith:2014:NIUSMG2Z2Q6DTZTHLHVDLIW3FR

not attested not anchored not stored refs pending

Small games and long memories promote cooperation

Alexander J. Stewart, Joshua B. Plotkin

arxiv:1407.1022 v3 · 2014-07-03 · 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{NIUSMG2Z2Q6DTZTHLHVDLIW3FR}

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	2026-05-18T01:26:50.542238Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a29261b59d43c39e66759ea35a2db2c7607aa9273be796d52509c1c262effc1

Aliases

arxiv: 1407.1022 · arxiv_version: 1407.1022v3 · doi: 10.48550/arxiv.1407.1022 · pith_short_12: NIUSMG2Z2Q6D · pith_short_16: NIUSMG2Z2Q6DTZTH · pith_short_8: NIUSMG2Z

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/NIUSMG2Z2Q6DTZTHLHVDLIW3FR \
  | 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: 6a29261b59d43c39e66759ea35a2db2c7607aa9273be796d52509c1c262effc1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13d5e8ad4ea37bf75edd2161ff6b8c7acab9a11ed111f05c79d665850689ce79",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2014-07-03T19:25:00Z",
    "title_canon_sha256": "630333ef2d736a9b20cdb9d271cd9ae2ec92bf591db0e81256f3dea3c8aa1cf2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.1022",
    "kind": "arxiv",
    "version": 3
  }
}