Pith Number

pith:EQ7FUIDZ

pith:2016:EQ7FUIDZVKD563ANYOM3WT2OPO

not attested not anchored not stored refs pending

Topological realizations of line arrangements

Daniel Ruberman, Laura Starkston

arxiv:1606.01776 v1 · 2016-06-06 · math.GT · math.AG · math.CO · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EQ7FUIDZVKD563ANYOM3WT2OPO}

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	2026-05-18T01:12:53.614831Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

243e5a2079aa87df6c0dc399bb4f4e7bbf53282dbdfaac2d6568d4ad16772051

Aliases

arxiv: 1606.01776 · arxiv_version: 1606.01776v1 · doi: 10.48550/arxiv.1606.01776 · pith_short_12: EQ7FUIDZVKD5 · pith_short_16: EQ7FUIDZVKD563AN · pith_short_8: EQ7FUIDZ

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/EQ7FUIDZVKD563ANYOM3WT2OPO \
  | 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: 243e5a2079aa87df6c0dc399bb4f4e7bbf53282dbdfaac2d6568d4ad16772051

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a388f643ccdda8b597f25813949420f09433e431f2af30e727502b4e76fc0913",
    "cross_cats_sorted": [
      "math.AG",
      "math.CO",
      "math.SG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2016-06-06T15:04:29Z",
    "title_canon_sha256": "23a29a4267bba842d938b9374ff87a51c9446ae0a461d9896a70f96b8f067bf1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.01776",
    "kind": "arxiv",
    "version": 1
  }
}