Pith Number

pith:6YULSUQE

pith:2009:6YULSUQEYKOOYDWUDM2HPS3CSJ

not attested not anchored not stored refs pending

Optimal bounds for sign-representing the intersection of two halfspaces by polynomials

Alexander A. Sherstov

arxiv:0910.4224 v2 · 2009-10-22 · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6YULSUQEYKOOYDWUDM2HPS3CSJ}

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	2026-07-04T17:22:18.685397Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f628b95204c29cec0ed41b3477cb629257bfa24b4eb7633197773bfcb45bcfe5

Aliases

arxiv: 0910.4224 · arxiv_version: 0910.4224v2 · doi: 10.48550/arxiv.0910.4224 · pith_short_12: 6YULSUQEYKOO · pith_short_16: 6YULSUQEYKOOYDWU · pith_short_8: 6YULSUQE

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/6YULSUQEYKOOYDWUDM2HPS3CSJ \
  | 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: f628b95204c29cec0ed41b3477cb629257bfa24b4eb7633197773bfcb45bcfe5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8f7cb0ee11c2b2b4f5ba6ebebbe3ddef1d1faae75dbea1b0c34c2295751ddd3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2009-10-22T04:05:31Z",
    "title_canon_sha256": "4e7d9939144f403110272d189998835e034a858ec4c502d63bf558b9add3d7da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.4224",
    "kind": "arxiv",
    "version": 2
  }
}