Pith Number

pith:LPBHRYWR

pith:2018:LPBHRYWR7LSZBKLDLJUTQOECZJ

not attested not anchored not stored refs pending

Topology and homotopy of lattice isomorphic arrangements

Beno\^it Guerville-Ball\'e

arxiv:1801.02682 v1 · 2018-01-08 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LPBHRYWR7LSZBKLDLJUTQOECZJ}

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	2026-05-18T00:26:22.756588Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5bc278e2d1fae590a9635a69383882ca6002af49b005c59c7a813afcef5df794

Aliases

arxiv: 1801.02682 · arxiv_version: 1801.02682v1 · doi: 10.48550/arxiv.1801.02682 · pith_short_12: LPBHRYWR7LSZ · pith_short_16: LPBHRYWR7LSZBKLD · pith_short_8: LPBHRYWR

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/LPBHRYWR7LSZBKLDLJUTQOECZJ \
  | 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: 5bc278e2d1fae590a9635a69383882ca6002af49b005c59c7a813afcef5df794

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed3ab817311588f14e66a5fb8b1b1e04b97408514f8b923b5f56b55f5d4caf76",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2018-01-08T20:54:23Z",
    "title_canon_sha256": "ed171095433fc88d66bdc7ac6be071137ea63c5fd2f61ed450e5ea4783ed70ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.02682",
    "kind": "arxiv",
    "version": 1
  }
}