Pith Number

pith:YCXCCQ42

pith:2018:YCXCCQ4233O4GN2L6CKZWNXTUR

not attested not anchored not stored refs pending

Plane sections of Fermat surfaces over finite fields

G. Cook, H. Borges, M. Coutinho

arxiv:1804.04442 v1 · 2018-04-12 · 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{YCXCCQ4233O4GN2L6CKZWNXTUR}

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	2026-05-18T00:18:37.538652Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0ae21439adeddc3374bf0959b36f3a464a47f21a38b7d1cf4a62af8f96570d2

Aliases

arxiv: 1804.04442 · arxiv_version: 1804.04442v1 · doi: 10.48550/arxiv.1804.04442 · pith_short_12: YCXCCQ4233O4 · pith_short_16: YCXCCQ4233O4GN2L · pith_short_8: YCXCCQ42

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/YCXCCQ4233O4GN2L6CKZWNXTUR \
  | 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: c0ae21439adeddc3374bf0959b36f3a464a47f21a38b7d1cf4a62af8f96570d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "338f4dc7962d47ee6a0b87d75d9e2c8bf7edaf632e65e5006c6c92238c842272",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-04-12T11:46:50Z",
    "title_canon_sha256": "0a1b13ada4005f61b6af8a5fd7778bbe7ad8ce917538612ae73baf8d2013af3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.04442",
    "kind": "arxiv",
    "version": 1
  }
}