Pith Number

pith:I6GHYSVV

pith:2019:I6GHYSVVIK54T6HZILG4WLIHAW

not attested not anchored not stored refs pending

Characteristic elements for real hyperplane arrangements

Jose Bastidas, Marcelo Aguiar, Swapneel Mahajan

arxiv:1902.07325 v1 · 2019-02-19 · 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{I6GHYSVVIK54T6HZILG4WLIHAW}

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	2026-05-17T23:53:08.269568Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

478c7c4ab542bbc9f8f942cdcb2d0705b3a5699d986442d7f2cfa112740f53fb

Aliases

arxiv: 1902.07325 · arxiv_version: 1902.07325v1 · doi: 10.48550/arxiv.1902.07325 · pith_short_12: I6GHYSVVIK54 · pith_short_16: I6GHYSVVIK54T6HZ · pith_short_8: I6GHYSVV

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/I6GHYSVVIK54T6HZILG4WLIHAW \
  | 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: 478c7c4ab542bbc9f8f942cdcb2d0705b3a5699d986442d7f2cfa112740f53fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6dd052d04b91220b20211aca289fe66d1ebb4cd2a1c0d26558197f1e3647902d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-02-19T22:21:58Z",
    "title_canon_sha256": "a47f28da43ed637a519d96b3976b6084d7c703db9fff4849b363a289c69f8e86"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.07325",
    "kind": "arxiv",
    "version": 1
  }
}