Pith Number

pith:2NXEMAGV

pith:2013:2NXEMAGVCHLUKGRYUIWUBM654X

not attested not anchored not stored refs pending

On spectral types of semialgebraic sets

J.M. Gamboa, Jos\'e F. Fernando

arxiv:1310.6291 v1 · 2013-10-23 · 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{2NXEMAGVCHLUKGRYUIWUBM654X}

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	2026-05-18T03:09:20.795380Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d36e4600d511d7451a38a22d40b3dde5e4db1f03a17ee2a995508cf1bf23f813

Aliases

arxiv: 1310.6291 · arxiv_version: 1310.6291v1 · doi: 10.48550/arxiv.1310.6291 · pith_short_12: 2NXEMAGVCHLU · pith_short_16: 2NXEMAGVCHLUKGRY · pith_short_8: 2NXEMAGV

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/2NXEMAGVCHLUKGRYUIWUBM654X \
  | 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: d36e4600d511d7451a38a22d40b3dde5e4db1f03a17ee2a995508cf1bf23f813

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e88a869f852effd858b7301a4d8113faaef36f9af978af19974ab7b9d23ff617",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-10-23T16:53:29Z",
    "title_canon_sha256": "574046fe76a609154c0ef6eb0dc7236024c5b47ad48690dc1ce457d22485b366"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.6291",
    "kind": "arxiv",
    "version": 1
  }
}