Pith Number

pith:OAPUJRS7

pith:2020:OAPUJRS7DNJTCCXI7QJUDIRTHD

not attested not anchored not stored refs pending

Making an Example: Signalling Threat in the Evolution of Cooperation

The Anh Han, Theodor Cimpeanu

arxiv:2001.08245 v2 · 2020-01-22 · cs.GT · cs.MA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OAPUJRS7DNJTCCXI7QJUDIRTHD}

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	2026-07-05T00:37:09.850396Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

701f44c65f1b53310ae8fc1341a23338e6dfc15bd9597942f3346b26c050e7a9

Aliases

arxiv: 2001.08245 · arxiv_version: 2001.08245v2 · doi: 10.48550/arxiv.2001.08245 · pith_short_12: OAPUJRS7DNJT · pith_short_16: OAPUJRS7DNJTCCXI · pith_short_8: OAPUJRS7

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/OAPUJRS7DNJTCCXI7QJUDIRTHD \
  | 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: 701f44c65f1b53310ae8fc1341a23338e6dfc15bd9597942f3346b26c050e7a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63be49709a5a600aa670d5e802e9a81ff358b5ba5110396b1ae873469d237916",
    "cross_cats_sorted": [
      "cs.MA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GT",
    "submitted_at": "2020-01-22T19:42:56Z",
    "title_canon_sha256": "11f2aba20b1ecd21a92d135b484efa096b6307d23854641c5fa7fc26ea2aa002"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.08245",
    "kind": "arxiv",
    "version": 2
  }
}