Pith Number

pith:7NQI7A6T

pith:2025:7NQI7A6TIARFGAEFD2MV7NVHHG

not attested not anchored not stored refs pending

Cactus, Pascal, and Pappus Point-Line Configurations: An Algebraic-Geometric Perspective

Lisa Vandebrouck

arxiv:2508.14141 v1 · 2025-08-19 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7NQI7A6TIARFGAEFD2MV7NVHHG}

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	2026-07-05T11:56:26.542593Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb608f83d340225300851e995fb6a739b15310c1e8bda7a65c0ad3299adada49

Aliases

arxiv: 2508.14141 · arxiv_version: 2508.14141v1 · doi: 10.48550/arxiv.2508.14141 · pith_short_12: 7NQI7A6TIARF · pith_short_16: 7NQI7A6TIARFGAEF · pith_short_8: 7NQI7A6T

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/7NQI7A6TIARFGAEFD2MV7NVHHG \
  | 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: fb608f83d340225300851e995fb6a739b15310c1e8bda7a65c0ad3299adada49

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b3be77e1d34b6957286b893ca191d3073e64a7c7732150dfaf5b2b4e23c2d0c8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2025-08-19T13:56:49Z",
    "title_canon_sha256": "d750105bee92ba4968492ac4928f60af701977f95d03c4454871bcaf38a5795c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.14141",
    "kind": "arxiv",
    "version": 1
  }
}