Pith Number

pith:4J4N6BF7

pith:2014:4J4N6BF7HAUMPLODPQ5WCDBD3P

not attested not anchored not stored refs pending

Bounded Negativity and Arrangements of Lines

Anders Lundman, Brian Harbourne, Jack Huizenga, Piotr Pokora, Sandra Di Rocco, Thomas Bauer, Tomasz Szemberg

arxiv:1407.2966 v2 · 2014-07-10 · math.AG · 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{4J4N6BF7HAUMPLODPQ5WCDBD3P}

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	2026-05-18T01:22:43.516130Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e278df04bf3828c7adc37c3b610c23dbe1effd28886a3bab20e119d2e6257e8c

Aliases

arxiv: 1407.2966 · arxiv_version: 1407.2966v2 · doi: 10.48550/arxiv.1407.2966 · pith_short_12: 4J4N6BF7HAUM · pith_short_16: 4J4N6BF7HAUMPLOD · pith_short_8: 4J4N6BF7

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/4J4N6BF7HAUMPLODPQ5WCDBD3P \
  | 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: e278df04bf3828c7adc37c3b610c23dbe1effd28886a3bab20e119d2e6257e8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf3a8bb068135db34a43c75dddbade114f854573b168fa1d002afdde9b149013",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-07-10T21:06:46Z",
    "title_canon_sha256": "5f19df178b74f12f6f89dfa40d7ce2aa4aed85ad9713d6ccd05ccb3dd5ce9718"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.2966",
    "kind": "arxiv",
    "version": 2
  }
}