Pith Number

pith:CKUJFIUD

pith:2009:CKUJFIUDMCASVZVT3IA3IZTC32

not attested not anchored not stored refs pending

Other-regarding preferences and altruistic punishment: A Darwinian perspective

Didier Sornette, Moritz Hetzer

arxiv:0908.3072 v2 · 2009-08-21 · physics.soc-ph · physics.pop-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{CKUJFIUDMCASVZVT3IA3IZTC32}

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	2026-05-18T02:44:32.799671Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

12a892a28360812ae6b3da01b46662deabab63fa4ba7b19c9a660f192490a25f

Aliases

arxiv: 0908.3072 · arxiv_version: 0908.3072v2 · doi: 10.48550/arxiv.0908.3072 · pith_short_12: CKUJFIUDMCAS · pith_short_16: CKUJFIUDMCASVZVT · pith_short_8: CKUJFIUD

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/CKUJFIUDMCASVZVT3IA3IZTC32 \
  | 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: 12a892a28360812ae6b3da01b46662deabab63fa4ba7b19c9a660f192490a25f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17ac25caf917be6182f6818d1237aa2b95eb0bfe3ce208bf144432ce98f87593",
    "cross_cats_sorted": [
      "physics.pop-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2009-08-21T08:25:51Z",
    "title_canon_sha256": "d422a6c59cc0ba24fadfd43dde8b2eff36fb082c432039ff8d32f1807f680cf4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.3072",
    "kind": "arxiv",
    "version": 2
  }
}