Pith Number

pith:DYWPRWJB

pith:2013:DYWPRWJBNUYMB26ZFZFASVAMU7

not attested not anchored not stored refs pending

Shared rewarding overcomes defection traps in generalized volunteer's dilemmas

Thilo gross, Ulf Dieckmann, Xiaojie Chen

arxiv:1306.4782 v2 · 2013-06-20 · physics.soc-ph · 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{DYWPRWJBNUYMB26ZFZFASVAMU7}

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	2026-05-18T03:18:18.156155Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e2cf8d9216d30c0ebd92e4a09540ca7d9be046cf72404765abdd05f6a2516db

Aliases

arxiv: 1306.4782 · arxiv_version: 1306.4782v2 · doi: 10.48550/arxiv.1306.4782 · pith_short_12: DYWPRWJBNUYM · pith_short_16: DYWPRWJBNUYMB26Z · pith_short_8: DYWPRWJB

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/DYWPRWJBNUYMB26ZFZFASVAMU7 \
  | 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: 1e2cf8d9216d30c0ebd92e4a09540ca7d9be046cf72404765abdd05f6a2516db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa7c788f273f6013aa6410a229ba1e03535bb8ce0fde9dd604e8590a14a39703",
    "cross_cats_sorted": [
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2013-06-20T08:29:50Z",
    "title_canon_sha256": "ecfe6c767f3fbcee8b758e245d19f046c68c1f1cd278c6b63d692835b71194c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.4782",
    "kind": "arxiv",
    "version": 2
  }
}