Pith Number

pith:2O7NS3MQ

pith:2005:2O7NS3MQQ6QQRDJ5526T3KFEFA

not attested not anchored not stored refs pending

Seshadri constants on ruled surfaces: the rational and the elliptic cases

Luis Fuentes Garcia

arxiv:math/0503253 v1 · 2005-03-14 · 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{2O7NS3MQQ6QQRDJ5526T3KFEFA}

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	2026-05-18T01:05:23.611943Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3bed96d9087a1088d3deebd3da8a4280892f7740685782ea274f4b38e3772be

Aliases

arxiv: math/0503253 · arxiv_version: math/0503253v1 · doi: 10.48550/arxiv.math/0503253 · pith_short_12: 2O7NS3MQQ6QQ · pith_short_16: 2O7NS3MQQ6QQRDJ5 · pith_short_8: 2O7NS3MQ

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/2O7NS3MQQ6QQRDJ5526T3KFEFA \
  | 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: d3bed96d9087a1088d3deebd3da8a4280892f7740685782ea274f4b38e3772be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a9a78d13d12a0fd9180d14791397553317b895a320476d71276e540744f0f32a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "2005-03-14T08:37:54Z",
    "title_canon_sha256": "827d33ababcee61ff2e3cf2cc01a0fbefd5317b6eabd313486512d82b2079648"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0503253",
    "kind": "arxiv",
    "version": 1
  }
}