Pith Number

pith:5GGLLTDQ

pith:2021:5GGLLTDQLZB77QYW4KDXJQIW57

not attested not anchored not stored refs pending

Topological Data Analysis of Spatial Systems

Abigail Hickok, Mason A. Porter, Michelle Feng

arxiv:2104.00720 v1 · 2021-04-01 · cs.SI · cs.CG · math.AT · nlin.AO · 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{5GGLLTDQLZB77QYW4KDXJQIW57}

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	2026-07-05T02:28:57.374124Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e98cb5cc705e43ffc316e28774c116efc14d5e0190a30327b25de6e6c2a464cb

Aliases

arxiv: 2104.00720 · arxiv_version: 2104.00720v1 · doi: 10.48550/arxiv.2104.00720 · pith_short_12: 5GGLLTDQLZB7 · pith_short_16: 5GGLLTDQLZB77QYW · pith_short_8: 5GGLLTDQ

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/5GGLLTDQLZB77QYW4KDXJQIW57 \
  | 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: e98cb5cc705e43ffc316e28774c116efc14d5e0190a30327b25de6e6c2a464cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b8b22052e72ead962786101025608c9b191808dd5ad18969cb7b85353504464",
    "cross_cats_sorted": [
      "cs.CG",
      "math.AT",
      "nlin.AO",
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2021-04-01T18:58:18Z",
    "title_canon_sha256": "3eca7e06e859a5f4a86a66433ff200e1ad254cf94da68c7a14927b4b6d388310"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.00720",
    "kind": "arxiv",
    "version": 1
  }
}