Pith Number

pith:C5QGIOWG

pith:2013:C5QGIOWGQMQIT77R5RQARMNVGT

not attested not anchored not stored refs pending

Cities as nuclei of sustainability?

Anna-Lena Winz, Christina Fichtner, Diego Rybski, Dominik E. Reusser, J\"urgen P. Kropp, Till Sterzel

arxiv:1304.4406 v3 · 2013-04-16 · physics.soc-ph · physics.ao-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{C5QGIOWGQMQIT77R5RQARMNVGT}

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	2026-05-18T00:53:19.576267Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1760643ac6832089fff1ec6008b1b534c23a1379d5f7c0e8ba8c6109fc5c7f38

Aliases

arxiv: 1304.4406 · arxiv_version: 1304.4406v3 · doi: 10.48550/arxiv.1304.4406 · pith_short_12: C5QGIOWGQMQI · pith_short_16: C5QGIOWGQMQIT77R · pith_short_8: C5QGIOWG

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/C5QGIOWGQMQIT77R5RQARMNVGT \
  | 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: 1760643ac6832089fff1ec6008b1b534c23a1379d5f7c0e8ba8c6109fc5c7f38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad72d0135ed75d412995d790b4c2b9842b171c2ccea723cb61e81685107efb08",
    "cross_cats_sorted": [
      "physics.ao-ph",
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2013-04-16T11:57:42Z",
    "title_canon_sha256": "f0d7f4f1305e81c536bd171e3cbbaa1bc4f63ef5f8be9e8a775ef8f76e457b0b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.4406",
    "kind": "arxiv",
    "version": 3
  }
}