Pith Number

pith:4LB3TV7H

pith:2013:4LB3TV7H5F537VK7AT2ID6PGBT

not attested not anchored not stored refs pending

From the Physics of Interacting Polymers to Optimizing Routes on the London Underground

Chi Ho Yeung, David Saad, K. Y. Michael Wong

arxiv:1309.0745 v1 · 2013-09-03 · physics.soc-ph · cond-mat.dis-nn · cond-mat.stat-mech · cs.NI · nlin.AO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4LB3TV7H5F537VK7AT2ID6PGBT}

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	2026-05-18T03:14:16.823542Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2c3b9d7e7e97bbfd55f04f481f9e60cd864acc32cce03dc0937ab70c9f66482

Aliases

arxiv: 1309.0745 · arxiv_version: 1309.0745v1 · doi: 10.48550/arxiv.1309.0745 · pith_short_12: 4LB3TV7H5F53 · pith_short_16: 4LB3TV7H5F537VK7 · pith_short_8: 4LB3TV7H

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/4LB3TV7H5F537VK7AT2ID6PGBT \
  | 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: e2c3b9d7e7e97bbfd55f04f481f9e60cd864acc32cce03dc0937ab70c9f66482

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9eae8e91f257ce4e6451bb7aab3f243336d5dfa28e3c74cc0152f8febb9bb1f",
    "cross_cats_sorted": [
      "cond-mat.dis-nn",
      "cond-mat.stat-mech",
      "cs.NI",
      "nlin.AO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2013-09-03T17:02:26Z",
    "title_canon_sha256": "c439210121b5a5a155d2681dbcc38ce62a9ca88b4a2ece0b4bbe0956c7fc87e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.0745",
    "kind": "arxiv",
    "version": 1
  }
}