Pith Number

pith:ENJYTOIA

pith:2021:ENJYTOIANRC3JZONN3FW3ZXRNT

not attested not anchored not stored refs pending

Analysis of Spatial and Spatiotemporal Anomalies Using Persistent Homology: Case Studies with COVID-19 Data

Abigail Hickok, Deanna Needell, Mason A. Porter

arxiv:2107.09188 v3 · 2021-07-19 · physics.soc-ph · cs.CG · math.AT · q-bio.PE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ENJYTOIANRC3JZONN3FW3ZXRNT}

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	2026-07-05T04:00:16.248511Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

235389b9006c45b4e5cd6ecb6de6f16ce1a5cae7f35bdcf8f7f1d087834b2c04

Aliases

arxiv: 2107.09188 · arxiv_version: 2107.09188v3 · doi: 10.48550/arxiv.2107.09188 · pith_short_12: ENJYTOIANRC3 · pith_short_16: ENJYTOIANRC3JZON · pith_short_8: ENJYTOIA

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/ENJYTOIANRC3JZONN3FW3ZXRNT \
  | 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: 235389b9006c45b4e5cd6ecb6de6f16ce1a5cae7f35bdcf8f7f1d087834b2c04

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a9a5c68852cd5da74e28b4a21e36b85ab89f5c96899759351a6b80663ad2dd4",
    "cross_cats_sorted": [
      "cs.CG",
      "math.AT",
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2021-07-19T22:59:37Z",
    "title_canon_sha256": "6170b157ed5f734ecd9a573287b42a44cb8da0752cffbee6c33b6d1d93c0f022"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.09188",
    "kind": "arxiv",
    "version": 3
  }
}