Pith Number

pith:IUXLCWJO

pith:1999:IUXLCWJOEX52FDHW6VIZNHHTLC

not attested not anchored not stored refs pending

Models of Extinction: A Review

M. E. J. Newman (Santa Fe Institute), R. G. Palmer (Duke University)

arxiv:adap-org/9908002 v1 · 1999-08-06 · adap-org · nlin.AO · q-bio

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IUXLCWJOEX52FDHW6VIZNHHTLC}

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	2026-05-18T01:37:43.239862Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

452eb1592e25fba28cf6f551969cf358bc29c6b9d784b8f0d220495f1e207c15

Aliases

arxiv: adap-org/9908002 · arxiv_version: adap-org/9908002v1 · doi: 10.48550/arxiv.adap-org/9908002 · pith_short_12: IUXLCWJOEX52 · pith_short_16: IUXLCWJOEX52FDHW · pith_short_8: IUXLCWJO

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/IUXLCWJOEX52FDHW6VIZNHHTLC \
  | 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: 452eb1592e25fba28cf6f551969cf358bc29c6b9d784b8f0d220495f1e207c15

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6633d19a5e5953644cf0d99448943c414daccc3c1b13c424a3807e8f1aa1b8fb",
    "cross_cats_sorted": [
      "nlin.AO",
      "q-bio"
    ],
    "license": "",
    "primary_cat": "adap-org",
    "submitted_at": "1999-08-06T18:13:46Z",
    "title_canon_sha256": "17f70cb6974701490ae966aa4ad4622f0f891fc41ffea5b15634b6558acd693f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "adap-org/9908002",
    "kind": "arxiv",
    "version": 1
  }
}