Pith Number

pith:ZPRUIB2E

pith:2015:ZPRUIB2EMKJZABG3AOUIOSUX7J

not attested not anchored not stored refs pending

Improving the use of equational constraints in cylindrical algebraic decomposition

James H. Davenport, Matthew England, Russell Bradford

arxiv:1501.04466 v2 · 2015-01-19 · 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{ZPRUIB2EMKJZABG3AOUIOSUX7J}

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	2026-05-18T01:36:43.419004Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbe344074462939004db03a8874a97fa6f2a4e9877fb3622356e38ccabbd0200

Aliases

arxiv: 1501.04466 · arxiv_version: 1501.04466v2 · doi: 10.48550/arxiv.1501.04466 · pith_short_12: ZPRUIB2EMKJZ · pith_short_16: ZPRUIB2EMKJZABG3 · pith_short_8: ZPRUIB2E

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/ZPRUIB2EMKJZABG3AOUIOSUX7J \
  | 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: cbe344074462939004db03a8874a97fa6f2a4e9877fb3622356e38ccabbd0200

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18f1226133e52714c562d093be9fac77bfb15bb4160b698c807a85073010a48e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SC",
    "submitted_at": "2015-01-19T12:10:21Z",
    "title_canon_sha256": "79e0f8115db5c19a3febd4971d39eeaed16a69224a09e7b71361ae11f6a68861"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.04466",
    "kind": "arxiv",
    "version": 2
  }
}