Pith Number

pith:DPOWZYWR

pith:2010:DPOWZYWRZVEFQ7LYLK4FQS2PPE

not attested not anchored not stored refs pending

A characterization of the symmetric square of a curve

Gian Pietro Pirola, Margarida Mendes Lopes, Rita Pardini

arxiv:1008.1790 v1 · 2010-08-10 · math.AG · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DPOWZYWRZVEFQ7LYLK4FQS2PPE}

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	2026-05-18T04:27:03.651301Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1bdd6ce2d1cd48587d785ab8584b4f79240ec1607e904109771ca449ae8d0be6

Aliases

arxiv: 1008.1790 · arxiv_version: 1008.1790v1 · doi: 10.48550/arxiv.1008.1790 · pith_short_12: DPOWZYWRZVEF · pith_short_16: DPOWZYWRZVEFQ7LY · pith_short_8: DPOWZYWR

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/DPOWZYWRZVEFQ7LYLK4FQS2PPE \
  | 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: 1bdd6ce2d1cd48587d785ab8584b4f79240ec1607e904109771ca449ae8d0be6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d7d06ef89f2dc9c7424b2724379fb1e6bdc187c8b088cc2e6245341b829bfb2",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2010-08-10T20:03:44Z",
    "title_canon_sha256": "eece23a48ba96d04e64e56834177aa3e2a47ba3f31a223cd0d23946563ba3fad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.1790",
    "kind": "arxiv",
    "version": 1
  }
}