Pith Number

pith:W6ESLLF7

pith:2018:W6ESLLF7YSG6AJLT4TCSZQOM3O

not attested not anchored not stored refs pending

A note on the topology of arrangements for a smooth plane quartic and its bitangent lines

Hiro-o Tokunaga, Momoko Yamamoto, Shinzo Bannai

arxiv:1806.02982 v1 · 2018-06-08 · 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{W6ESLLF7YSG6AJLT4TCSZQOM3O}

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	2026-05-18T00:13:53.993936Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b78925acbfc48de02573e4c52cc1ccdb83c80b4a05ab05ff0b2a20296b204cc3

Aliases

arxiv: 1806.02982 · arxiv_version: 1806.02982v1 · doi: 10.48550/arxiv.1806.02982 · pith_short_12: W6ESLLF7YSG6 · pith_short_16: W6ESLLF7YSG6AJLT · pith_short_8: W6ESLLF7

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/W6ESLLF7YSG6AJLT4TCSZQOM3O \
  | 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: b78925acbfc48de02573e4c52cc1ccdb83c80b4a05ab05ff0b2a20296b204cc3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fed9b78171c22055336843464f9f2b59f4e471b7fcc22e96c308180bc09cba52",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-06-08T06:37:16Z",
    "title_canon_sha256": "54384dc27056e077a4c5e6188333b3ab3025068840f43ec51572eb006c5bc898"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.02982",
    "kind": "arxiv",
    "version": 1
  }
}