Pith Number

pith:HPGYPOJA

pith:2013:HPGYPOJANFXTLOL2TKKUUY5MGQ

not attested not anchored not stored refs pending

Designing Unimodular Codes via Quadratic Optimization is not Always Hard

Mojtaba Soltanalian, Petre Stoica

arxiv:1303.0152 v1 · 2013-03-01 · cs.SY · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HPGYPOJANFXTLOL2TKKUUY5MGQ}

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	2026-05-18T02:39:46.005625Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3bcd87b920696f35b97a9a954a63ac341cf5b92131d4a114c89aeb6de043286c

Aliases

arxiv: 1303.0152 · arxiv_version: 1303.0152v1 · doi: 10.48550/arxiv.1303.0152 · pith_short_12: HPGYPOJANFXT · pith_short_16: HPGYPOJANFXTLOL2 · pith_short_8: HPGYPOJA

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/HPGYPOJANFXTLOL2TKKUUY5MGQ \
  | 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: 3bcd87b920696f35b97a9a954a63ac341cf5b92131d4a114c89aeb6de043286c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc9aef406aa2a0486bec4da5e7719c5ea6c9dd5a69f30d9ab8dc60e515f7307e",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2013-03-01T12:17:45Z",
    "title_canon_sha256": "72de5fceb3c6a16f8861588682cb891df87870b3b4fbaa0fb2962846348de72a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.0152",
    "kind": "arxiv",
    "version": 1
  }
}