Pith Number

pith:LIPXOZPQ

pith:2013:LIPXOZPQFE566UR4R573RAIIY6

not attested not anchored not stored refs pending

Counting maps from curves to projective space via graph theory

Ethan Cotterill

arxiv:1303.4449 v1 · 2013-03-18 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LIPXOZPQFE566UR4R573RAIIY6}

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	2026-05-18T03:30:27.182869Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a1f7765f0293bef523c8f7fb88108c796699aa0cc3315ddbe7b229fe6343b61

Aliases

arxiv: 1303.4449 · arxiv_version: 1303.4449v1 · doi: 10.48550/arxiv.1303.4449 · pith_short_12: LIPXOZPQFE56 · pith_short_16: LIPXOZPQFE566UR4 · pith_short_8: LIPXOZPQ

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/LIPXOZPQFE566UR4R573RAIIY6 \
  | 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: 5a1f7765f0293bef523c8f7fb88108c796699aa0cc3315ddbe7b229fe6343b61

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ec2fdf31901cb1300a096c3f6e60b0d2f049960cdddeab752b79b08410376c1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-03-18T22:40:39Z",
    "title_canon_sha256": "bb964115d8da8525fb02f6b7a0aa1e8e80a12d1b8aaced068c22d928ed0db3aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.4449",
    "kind": "arxiv",
    "version": 1
  }
}