Pith Number

pith:CPQI4NEZ

pith:2011:CPQI4NEZLX43ZTDS2ONVFALU6O

not attested not anchored not stored refs pending

Deciding trigonality of algebraic curves

David Sevilla, Josef Schicho

arxiv:1103.4689 v1 · 2011-03-24 · math.AG · cs.SC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CPQI4NEZLX43ZTDS2ONVFALU6O}

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	2026-05-18T04:26:01.075486Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13e08e34995df9bccc72d39b528174f39d3dc074de2e9bf9e18c50690e6e5ad4

Aliases

arxiv: 1103.4689 · arxiv_version: 1103.4689v1 · doi: 10.48550/arxiv.1103.4689 · pith_short_12: CPQI4NEZLX43 · pith_short_16: CPQI4NEZLX43ZTDS · pith_short_8: CPQI4NEZ

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/CPQI4NEZLX43ZTDS2ONVFALU6O \
  | 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: 13e08e34995df9bccc72d39b528174f39d3dc074de2e9bf9e18c50690e6e5ad4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df3553627913a56f518e9e5632acba485d4d95c21bfb0dbb9baa89a409ee0dc9",
    "cross_cats_sorted": [
      "cs.SC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2011-03-24T07:53:56Z",
    "title_canon_sha256": "9689eca15842fadc49b7309238c31258e0d6c1f50945c6b08a605c6c5668ec7e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.4689",
    "kind": "arxiv",
    "version": 1
  }
}