Pith Number

pith:K7RYMP2K

pith:2018:K7RYMP2KF2673VGC6QYLHXGO47

not attested not anchored not stored refs pending

Rethinking network reciprocity over social ties: local interactions make direct reciprocity possible and pave the rational way to cooperation

Carlo Piccardi, Fabio Della Rossa, Fabio Dercole

arxiv:1811.04119 v1 · 2018-11-09 · nlin.AO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K7RYMP2KF2673VGC6QYLHXGO47}

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	2026-05-17T23:47:02.532848Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57e3863f4a2ebdfdd4c2f430b3dccee7c4b685bb4400ca7100d3028496c22ed3

Aliases

arxiv: 1811.04119 · arxiv_version: 1811.04119v1 · doi: 10.48550/arxiv.1811.04119 · pith_short_12: K7RYMP2KF267 · pith_short_16: K7RYMP2KF2673VGC · pith_short_8: K7RYMP2K

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/K7RYMP2KF2673VGC6QYLHXGO47 \
  | 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: 57e3863f4a2ebdfdd4c2f430b3dccee7c4b685bb4400ca7100d3028496c22ed3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04499455557b0e9436997e8d38a6be99e4864cc2aa946dc1814a147c4289a01a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.AO",
    "submitted_at": "2018-11-09T20:05:33Z",
    "title_canon_sha256": "603aa915858382483451fd4104990cee57ef9d49a8ddbf0a65b114d20986202e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.04119",
    "kind": "arxiv",
    "version": 1
  }
}