Pith Number

pith:E4A54R76

pith:2020:E4A54R76N2FPEAUWFDGXV75D7Y

not attested not anchored not stored refs pending

Change in Artificial Land Use over time across European Cities: A rescaled radial perspective

Geoffrey Caruso, Paul Kilgarriff, R\'emi Lemoy

arxiv:2010.08401 v1 · 2020-10-16 · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E4A54R76N2FPEAUWFDGXV75D7Y}

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	2026-07-05T01:43:34.530848Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2701de47fe6e8af2029628cd7affa3fe3d6a3ba5a8358ee8d6cbdeefbb25420e

Aliases

arxiv: 2010.08401 · arxiv_version: 2010.08401v1 · doi: 10.48550/arxiv.2010.08401 · pith_short_12: E4A54R76N2FP · pith_short_16: E4A54R76N2FPEAUW · pith_short_8: E4A54R76

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/E4A54R76N2FPEAUWFDGXV75D7Y \
  | 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: 2701de47fe6e8af2029628cd7affa3fe3d6a3ba5a8358ee8d6cbdeefbb25420e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ac4ca840692890de7d0ac43d8f2852da064a0ef12bd06afb39d81d57506fc35",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2020-10-16T14:01:40Z",
    "title_canon_sha256": "f0fc9a6821a32a909d8ec5f6d8c27c75d54e65c783f45bddf542b7719afa331f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2010.08401",
    "kind": "arxiv",
    "version": 1
  }
}