Pith Number

pith:LOEOERBS

pith:2009:LOEOERBS3TBPOLBQRFCRZGZQBR

not attested not anchored not stored refs pending

Imitative Trust versus Indirect Reciprocity

David Smith, Felix Reed-Tsochas, Serguei Saavedra

arxiv:0909.0049 v2 · 2009-08-31 · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LOEOERBS3TBPOLBQRFCRZGZQBR}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T04:36:51.323507Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b88e24432dcc2f72c3089451c9b300c5dfa05370806e61a2259945fa92dcbef

Aliases

arxiv: 0909.0049 · arxiv_version: 0909.0049v2 · doi: 10.48550/arxiv.0909.0049 · pith_short_12: LOEOERBS3TBP · pith_short_16: LOEOERBS3TBPOLBQ · pith_short_8: LOEOERBS

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/LOEOERBS3TBPOLBQRFCRZGZQBR \
  | 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: 5b88e24432dcc2f72c3089451c9b300c5dfa05370806e61a2259945fa92dcbef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9726beb0fb61682bf1aa084f2f02e66b6ce4684253197b7ae1c71ba547718cc7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2009-08-31T23:22:45Z",
    "title_canon_sha256": "e970b0d91650a3dc61db0d0b5b60fa96c6af9354e470d0a61105936e143ce8c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.0049",
    "kind": "arxiv",
    "version": 2
  }
}