Pith Number

pith:FHPMN7NJ

pith:2013:FHPMN7NJJAP5UU5RXWQY2X2HA4

not attested not anchored not stored refs pending

Quillen property of real algebraic varieties

Claus Scheiderer, Mihai Putinar

arxiv:1304.0947 v1 · 2013-04-03 · 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{FHPMN7NJJAP5UU5RXWQY2X2HA4}

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	2026-05-18T03:29:05.671518Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29dec6fda9481fda53b1bda18d5f47073e62e3f0010b898b067187bd6e7d13f0

Aliases

arxiv: 1304.0947 · arxiv_version: 1304.0947v1 · doi: 10.48550/arxiv.1304.0947 · pith_short_12: FHPMN7NJJAP5 · pith_short_16: FHPMN7NJJAP5UU5R · pith_short_8: FHPMN7NJ

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/FHPMN7NJJAP5UU5RXWQY2X2HA4 \
  | 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: 29dec6fda9481fda53b1bda18d5f47073e62e3f0010b898b067187bd6e7d13f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60dda4c007c4db7ad4f9311e661e98f98d814acd527ccea02a4d990a33d1f082",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-04-03T13:13:37Z",
    "title_canon_sha256": "3d9003ccddc2aea6d11f9690b1d8e17fb6d874780821b588706e2f15d6f70363"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.0947",
    "kind": "arxiv",
    "version": 1
  }
}