Pith Number

pith:VYS6AO52

pith:2012:VYS6AO52WNRY2QIGN66ILJLGSX

not attested not anchored not stored refs pending

Topology of generic line arrangements

Arnaud Bodin

arxiv:1205.2203 v2 · 2012-05-10 · 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{VYS6AO52WNRY2QIGN66ILJLGSX}

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	2026-05-18T03:52:38.273008Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae25e03bbab3638d41066fbc85a56695eadcf51d42d95c5f48b70fd28adc8390

Aliases

arxiv: 1205.2203 · arxiv_version: 1205.2203v2 · doi: 10.48550/arxiv.1205.2203 · pith_short_12: VYS6AO52WNRY · pith_short_16: VYS6AO52WNRY2QIG · pith_short_8: VYS6AO52

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/VYS6AO52WNRY2QIGN66ILJLGSX \
  | 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: ae25e03bbab3638d41066fbc85a56695eadcf51d42d95c5f48b70fd28adc8390

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b338634495111d207dd90d0d6d74a54b56fe5f890634d3d9a593a4a544fe80e3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2012-05-10T09:03:26Z",
    "title_canon_sha256": "3f8abc8558ddf2d8e33c16c1115387e6abc8e51e09d93d2ea74b4bc8c0e9b9fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.2203",
    "kind": "arxiv",
    "version": 2
  }
}