Pith Number

pith:MCHG2ILQ

pith:2016:MCHG2ILQ3CCJ2X55QGKWJJDV7S

not attested not anchored not stored refs pending

On the topology of arrangements of a cubic and its inflectional tangents

Beno\^it Guerville-Ball\'e, Hiro-o Tokunaga, Shinzo Bannai, Taketo Shirane

arxiv:1607.07618 v1 · 2016-07-26 · math.AG · 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{MCHG2ILQ3CCJ2X55QGKWJJDV7S}

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	2026-05-18T01:10:28.151848Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

608e6d2170d8849d5fbd819564a475fc964ef018c753df18ae8da0bd9e18eec5

Aliases

arxiv: 1607.07618 · arxiv_version: 1607.07618v1 · doi: 10.48550/arxiv.1607.07618 · pith_short_12: MCHG2ILQ3CCJ · pith_short_16: MCHG2ILQ3CCJ2X55 · pith_short_8: MCHG2ILQ

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/MCHG2ILQ3CCJ2X55QGKWJJDV7S \
  | 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: 608e6d2170d8849d5fbd819564a475fc964ef018c753df18ae8da0bd9e18eec5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6b924731ff6b984096b845a13d99004258959c9331ab0d5fc3f4bd13bb3daa5",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2016-07-26T10:06:26Z",
    "title_canon_sha256": "9656bf15a7a8254992a46a0218a220161015241d2132d5d67e4aba0014b9a2cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.07618",
    "kind": "arxiv",
    "version": 1
  }
}