Pith Number

pith:73KZCZZW

pith:2013:73KZCZZWILMBXDAZ7WZSEJHXVX

not attested not anchored not stored refs pending

Forgiver triumphs in alternating Prisoner's Dilemma

Benjamin M. Zagorsky, Johannes G. Reiter, Krishnendu Chatterjee, Martin A. Nowak

arxiv:1308.4256 v1 · 2013-08-20 · 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{73KZCZZWILMBXDAZ7WZSEJHXVX}

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	2026-05-18T02:57:08.744179Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fed591673642d81b8c19fdb32224f7adc2a9abe8728f72ff3f93fe8f51be524b

Aliases

arxiv: 1308.4256 · arxiv_version: 1308.4256v1 · doi: 10.48550/arxiv.1308.4256 · pith_short_12: 73KZCZZWILMB · pith_short_16: 73KZCZZWILMBXDAZ · pith_short_8: 73KZCZZW

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/73KZCZZWILMBXDAZ7WZSEJHXVX \
  | 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: fed591673642d81b8c19fdb32224f7adc2a9abe8728f72ff3f93fe8f51be524b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b2ca1f17db87b0cac5584de56163234c97914927723535d246f250a95c89889",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2013-08-20T08:47:57Z",
    "title_canon_sha256": "a6457f81a66c5aab833d25d39efdef906104b3e97aa2b86f9f9cea94fa606b6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.4256",
    "kind": "arxiv",
    "version": 1
  }
}