Pith Number

pith:RNBQBXDV

pith:2018:RNBQBXDV7DHJDOQ4IYWFRSS6QT

not attested not anchored not stored refs pending

Environmental feedback drives cooperation in spatial social dilemmas

Attila Szolnoki, Xiaojie Chen

arxiv:1802.06745 v1 · 2018-02-19 · physics.soc-ph · cs.GT · 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{RNBQBXDV7DHJDOQ4IYWFRSS6QT}

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	2026-05-18T00:22:49.024897Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b4300dc75f8ce91ba1c462c58ca5e84e82d201d9e520f47c00b0b61e4bef8fe

Aliases

arxiv: 1802.06745 · arxiv_version: 1802.06745v1 · doi: 10.48550/arxiv.1802.06745 · pith_short_12: RNBQBXDV7DHJ · pith_short_16: RNBQBXDV7DHJDOQ4 · pith_short_8: RNBQBXDV

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/RNBQBXDV7DHJDOQ4IYWFRSS6QT \
  | 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: 8b4300dc75f8ce91ba1c462c58ca5e84e82d201d9e520f47c00b0b61e4bef8fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2761837cde1746513cdc9363d83b7e7924b7e972837ec6e5c75de5ba2c8b78d4",
    "cross_cats_sorted": [
      "cs.GT",
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2018-02-19T18:25:48Z",
    "title_canon_sha256": "bec1bc66af0d4cfdfc5d1b9eb311a2ec06cd15cc8fae819804a56f842efd75cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.06745",
    "kind": "arxiv",
    "version": 1
  }
}