Pith Number

pith:HWC6KYU6

pith:2020:HWC6KYU6YNILXIW2FAEF4ANZT4

not attested not anchored not stored refs pending

Temporal assortment of cooperators in the spatial prisoner's dilemma

Oleg Smirnov, Tim Johnson

arxiv:2011.14440 v1 · 2020-11-29 · q-bio.PE · cs.GT · cs.SI · econ.TH · physics.app-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{HWC6KYU6YNILXIW2FAEF4ANZT4}

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	2026-07-05T01:55:20.453963Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d85e5629ec350bba2da28085e01b99f07fab6c591c1d87a56abec7de5b56ed1

Aliases

arxiv: 2011.14440 · arxiv_version: 2011.14440v1 · doi: 10.48550/arxiv.2011.14440 · pith_short_12: HWC6KYU6YNIL · pith_short_16: HWC6KYU6YNILXIW2 · pith_short_8: HWC6KYU6

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/HWC6KYU6YNILXIW2FAEF4ANZT4 \
  | 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: 3d85e5629ec350bba2da28085e01b99f07fab6c591c1d87a56abec7de5b56ed1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72ec4bfa8e89fda4dfb4252cc711a2479e24639f9168adea354d3c9b7217b7cd",
    "cross_cats_sorted": [
      "cs.GT",
      "cs.SI",
      "econ.TH",
      "physics.app-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2020-11-29T20:27:19Z",
    "title_canon_sha256": "1a136871a1963105a65645b4781747ffc835547ec09a14457d94981e378d71a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2011.14440",
    "kind": "arxiv",
    "version": 1
  }
}