Pith Number

pith:2HN4TQUC

pith:2018:2HN4TQUCB3XCI2DBVYDNDCLE2I

not attested not anchored not stored refs pending

Summer Research Report: Towards Incremental Lazard Cylindrical Algebraic Decomposition

Alexander I. Cowen-Rivers, Matthew England

arxiv:1804.08564 v1 · 2018-04-23 · 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{2HN4TQUCB3XCI2DBVYDNDCLE2I}

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	2026-05-18T00:17:47.903573Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1dbc9c2820eee246861ae06d18964d23a130a3335847f22fc0ad331b1447248

Aliases

arxiv: 1804.08564 · arxiv_version: 1804.08564v1 · doi: 10.48550/arxiv.1804.08564 · pith_short_12: 2HN4TQUCB3XC · pith_short_16: 2HN4TQUCB3XCI2DB · pith_short_8: 2HN4TQUC

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/2HN4TQUCB3XCI2DBVYDNDCLE2I \
  | 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: d1dbc9c2820eee246861ae06d18964d23a130a3335847f22fc0ad331b1447248

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "861e0fcf9e3d555aba31d32c753a02216dd50f60ba21e4132fe1ec98655bc8eb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SC",
    "submitted_at": "2018-04-23T16:59:00Z",
    "title_canon_sha256": "82af1b492b4764a13bd0ad47cdb17f68c19d21d6c7845a7173e3e6e31fc1e5a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.08564",
    "kind": "arxiv",
    "version": 1
  }
}