Pith Number

pith:NTXDBZRL

pith:2013:NTXDBZRLZI3JS4MAKZD6WFMEHW

not attested not anchored not stored refs pending

A solution concept for games with altruism and cooperation

Valerio Capraro

arxiv:1302.3988 v4 · 2013-02-16 · cs.GT · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NTXDBZRLZI3JS4MAKZD6WFMEHW}

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	2026-05-18T03:13:46.095786Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6cee30e62bca369971805647eb15843da23b1ab3d0359e082e3d9efc87f5f1a4

Aliases

arxiv: 1302.3988 · arxiv_version: 1302.3988v4 · doi: 10.48550/arxiv.1302.3988 · pith_short_12: NTXDBZRLZI3J · pith_short_16: NTXDBZRLZI3JS4MA · pith_short_8: NTXDBZRL

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/NTXDBZRLZI3JS4MAKZD6WFMEHW \
  | 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: 6cee30e62bca369971805647eb15843da23b1ab3d0359e082e3d9efc87f5f1a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "028a39a400fb86ba7727d19da85510575fa1220b66b578232fea5fe7da93bf5e",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GT",
    "submitted_at": "2013-02-16T18:59:54Z",
    "title_canon_sha256": "985e9ac9e37f1fd525d7586e3bbfa0702873d57730e481bab3ee62d06f18a11e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.3988",
    "kind": "arxiv",
    "version": 4
  }
}