Pith Number

pith:CQIUIFNY

pith:2010:CQIUIFNYDXV2PYCTMI7PADFP45

not attested not anchored not stored refs pending

Generalized Semimagic Squares for Digital Halftoning

Akitoshi Kawamura

arxiv:1009.1373 v1 · 2010-09-07 · cs.CG · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CQIUIFNYDXV2PYCTMI7PADFP45}

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	2026-05-18T03:26:40.139473Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

14114415b81deba7e053623ef00cafe757db07ccc565a3f10eb570e25c6c8d76

Aliases

arxiv: 1009.1373 · arxiv_version: 1009.1373v1 · doi: 10.48550/arxiv.1009.1373 · pith_short_12: CQIUIFNYDXV2 · pith_short_16: CQIUIFNYDXV2PYCT · pith_short_8: CQIUIFNY

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/CQIUIFNYDXV2PYCTMI7PADFP45 \
  | 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: 14114415b81deba7e053623ef00cafe757db07ccc565a3f10eb570e25c6c8d76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15e000cee33deac3ac2914dab2a7a4ff68a2c19fe79446a64aac909898ab8ac1",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2010-09-07T19:23:51Z",
    "title_canon_sha256": "06e7a207451fe30b922cb3b291f693399a93df4555021d9ae53772ec06beaa5e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.1373",
    "kind": "arxiv",
    "version": 1
  }
}