Pith Number

pith:56BEUL3W

pith:2019:56BEUL3WEEK3ZOCVZUVI6UPARH

not attested not anchored not stored refs pending

Schemes supported on the singular locus of a hyperplane arrangement in $\mathbb P^n$

H. Schenck, J. Migliore, U. Nagel

arxiv:1908.03939 v1 · 2019-08-11 · math.AG · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{56BEUL3WEEK3ZOCVZUVI6UPARH}

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	2026-07-04T23:53:19.529813Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef824a2f762115bcb855cd2a8f51e089ca630506fdc2af18281945cfe063f5fd

Aliases

arxiv: 1908.03939 · arxiv_version: 1908.03939v1 · doi: 10.48550/arxiv.1908.03939 · pith_short_12: 56BEUL3WEEK3 · pith_short_16: 56BEUL3WEEK3ZOCV · pith_short_8: 56BEUL3W

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/56BEUL3WEEK3ZOCVZUVI6UPARH \
  | 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: ef824a2f762115bcb855cd2a8f51e089ca630506fdc2af18281945cfe063f5fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71372c73f0b9500cf33a197e4365fb8f6ddf99faf65bc46cf841c1d51a09918b",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2019-08-11T17:21:12Z",
    "title_canon_sha256": "0ca007b02ad4dc95254e06e2d2c7bef082f4b12298998d125c0e4ca2cac3f2c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.03939",
    "kind": "arxiv",
    "version": 1
  }
}