Pith Number

pith:WU2X4BSU

pith:2012:WU2X4BSUFMEZD2TJCW774DJHEH

not attested not anchored not stored refs pending

A baby step-giant step roadmap algorithm for general algebraic sets

\'Eric Schost, Marie-Fran\c{c}oise Roy, Mohab Safey El Din, Saugata Basu

arxiv:1201.6439 v2 · 2012-01-31 · math.AG · cs.SC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WU2X4BSUFMEZD2TJCW774DJHEH}

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	2026-05-18T02:50:52.153017Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5357e06542b0991ea6915bffe0d2721c49ca381aa189135993d9c6a5617d821

Aliases

arxiv: 1201.6439 · arxiv_version: 1201.6439v2 · doi: 10.48550/arxiv.1201.6439 · pith_short_12: WU2X4BSUFMEZ · pith_short_16: WU2X4BSUFMEZD2TJ · pith_short_8: WU2X4BSU

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/WU2X4BSUFMEZD2TJCW774DJHEH \
  | 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: b5357e06542b0991ea6915bffe0d2721c49ca381aa189135993d9c6a5617d821

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2349a2240752cd2a75f52de2af08d8499cd7dfc46a1dab01d3292dd3b6e530a",
    "cross_cats_sorted": [
      "cs.SC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-01-31T04:37:58Z",
    "title_canon_sha256": "21bcd914e6a30ed40f33180a3478098aa9f11702b4777b5b9131aedac69c610a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.6439",
    "kind": "arxiv",
    "version": 2
  }
}