Pith Number

pith:Y5GURRF6

pith:2018:Y5GURRF6USW5NC2ZVN6JOXSIE4

not attested not anchored not stored refs pending

Evolution of Cooperation on Stochastic Block Models

Babak Fotouhi, Benjamin Allen, Martin A. Nowak, Naghmeh Momeni

arxiv:1807.03093 v1 · 2018-07-09 · cs.SI · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y5GURRF6USW5NC2ZVN6JOXSIE4}

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	2026-05-18T00:11:12.930516Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c74d48c4bea4add68b59ab7c975e482714747cb7d91a8447e49e328745e04bd6

Aliases

arxiv: 1807.03093 · arxiv_version: 1807.03093v1 · doi: 10.48550/arxiv.1807.03093 · pith_short_12: Y5GURRF6USW5 · pith_short_16: Y5GURRF6USW5NC2Z · pith_short_8: Y5GURRF6

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/Y5GURRF6USW5NC2ZVN6JOXSIE4 \
  | 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: c74d48c4bea4add68b59ab7c975e482714747cb7d91a8447e49e328745e04bd6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9308d851310b73f7a20ef27cf2b8c736e6a9291fdefff8ffbf186e5b8c40e61",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2018-07-09T13:12:18Z",
    "title_canon_sha256": "45e2d39cd404fc6eb1fb6576407f6d5b59602736b649577392a0339305b7b649"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.03093",
    "kind": "arxiv",
    "version": 1
  }
}