Pith Number

pith:6LZ64FPA

pith:2009:6LZ64FPAD2F2XZ66ZH7LEIJPYB

not attested not anchored not stored refs pending

Constant net-time headway as key mechanism behind pedestrian flow dynamics

Anders Johansson

arxiv:0908.3118 v1 · 2009-08-21 · physics.soc-ph · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6LZ64FPAD2F2XZ66ZH7LEIJPYB}

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	2026-05-18T02:12:24.274273Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f2f3ee15e01e8babe7dec9feb2212fc04188f0f7ec7b211671fa27586ea85620

Aliases

arxiv: 0908.3118 · arxiv_version: 0908.3118v1 · doi: 10.48550/arxiv.0908.3118 · pith_short_12: 6LZ64FPAD2F2 · pith_short_16: 6LZ64FPAD2F2XZ66 · pith_short_8: 6LZ64FPA

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/6LZ64FPAD2F2XZ66ZH7LEIJPYB \
  | 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: f2f3ee15e01e8babe7dec9feb2212fc04188f0f7ec7b211671fa27586ea85620

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67aca46562b6a2fa5c2d1dffb389a2115a2cec166d8a779f6d8ce9e96a2eb28f",
    "cross_cats_sorted": [
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2009-08-21T13:06:57Z",
    "title_canon_sha256": "048330bc15de26bb9960110b12f0be0e32b3708342de9fe8d7f812dcca51cc0c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.3118",
    "kind": "arxiv",
    "version": 1
  }
}