Pith Number

pith:DAHRAK4W

pith:1998:DAHRAK4WXLZCPBEVTTZ2PCVNXE

not attested not anchored not stored refs pending

Modelling the Evolution of Human Trail Systems

Dirk Helbing, Joachim Keltsch, Peter Molnar

arxiv:cond-mat/9805158 v1 · 1998-05-13 · cond-mat.stat-mech · nlin.PS · patt-sol

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DAHRAK4WXLZCPBEVTTZ2PCVNXE}

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	2026-05-18T01:39:30.530845Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

180f102b96baf22784959cf3a78aadb9295327190624ea29c76cf19b264bb72f

Aliases

arxiv: cond-mat/9805158 · arxiv_version: cond-mat/9805158v1 · doi: 10.48550/arxiv.cond-mat/9805158 · pith_short_12: DAHRAK4WXLZC · pith_short_16: DAHRAK4WXLZCPBEV · pith_short_8: DAHRAK4W

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/DAHRAK4WXLZCPBEVTTZ2PCVNXE \
  | 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: 180f102b96baf22784959cf3a78aadb9295327190624ea29c76cf19b264bb72f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b3e214b77c56624d47983785e07c76a7d3a4a3c51b7ef2fc61b71da7614fddc0",
    "cross_cats_sorted": [
      "nlin.PS",
      "patt-sol"
    ],
    "license": "",
    "primary_cat": "cond-mat.stat-mech",
    "submitted_at": "1998-05-13T16:24:00Z",
    "title_canon_sha256": "053de699662274f55e936f7bf2d9ea9eec3a10d588d43f2f73978028b5650727"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/9805158",
    "kind": "arxiv",
    "version": 1
  }
}