Pith Number

pith:242I6RGP

pith:2019:242I6RGPIJZD6ONOBNXR7HS4LT

not attested not anchored not stored refs pending

Totally geodesic subvarieties in the moduli space of curves

Alessandro Ghigi, Gian Pietro Pirola, Sara Torelli

arxiv:1902.06098 v1 · 2019-02-16 · 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{242I6RGPIJZD6ONOBNXR7HS4LT}

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	2026-05-17T23:53:46.585205Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7348f44cf42723f39ae0b6f1f9e5c5cf8d0726df46203a80de8105702cc35ba

Aliases

arxiv: 1902.06098 · arxiv_version: 1902.06098v1 · doi: 10.48550/arxiv.1902.06098 · pith_short_12: 242I6RGPIJZD · pith_short_16: 242I6RGPIJZD6ONO · pith_short_8: 242I6RGP

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/242I6RGPIJZD6ONOBNXR7HS4LT \
  | 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: d7348f44cf42723f39ae0b6f1f9e5c5cf8d0726df46203a80de8105702cc35ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55886468469db267c8092652f7fd02ae20158044d239ab9b468d81cf04b16cc1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2019-02-16T12:54:19Z",
    "title_canon_sha256": "bccbf8fcb56f4af4501e9f67affc2b6fa54410680ec2448ca5874cfdc1ec6ad2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.06098",
    "kind": "arxiv",
    "version": 1
  }
}