Pith Number

pith:FDE33CNT

pith:2012:FDE33CNTAXYMMHMXY5H5K5UDLQ

not attested not anchored not stored refs pending

On a notion of speciality of linear systems in P^n

Elisa Postinghel, Maria Chiara Brambilla, Olivia Dumitrescu

arxiv:1210.5175 v2 · 2012-10-18 · math.AG · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FDE33CNTAXYMMHMXY5H5K5UDLQ}

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	2026-05-18T01:31:30.508918Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28c9bd89b305f0c61d97c74fd576835c24cc39078b5febef1dac8df8633fa6c1

Aliases

arxiv: 1210.5175 · arxiv_version: 1210.5175v2 · doi: 10.48550/arxiv.1210.5175 · pith_short_12: FDE33CNTAXYM · pith_short_16: FDE33CNTAXYMMHMX · pith_short_8: FDE33CNT

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/FDE33CNTAXYMMHMXY5H5K5UDLQ \
  | 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: 28c9bd89b305f0c61d97c74fd576835c24cc39078b5febef1dac8df8633fa6c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cedf98b26b379513a32fea0e760d3bf1e0b182daa23659f0a1de363c836a5f90",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-10-18T16:27:07Z",
    "title_canon_sha256": "a40de904f748011b4aa0864a6d43f9fce332058859d57cb746fbeeb2745c60ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.5175",
    "kind": "arxiv",
    "version": 2
  }
}