Pith Number

pith:CXC7FIRJ

pith:2012:CXC7FIRJHCA2BJXJV45IVW3SMU

not attested not anchored not stored refs pending

Classification of poset-block spaces admitting MacWilliams-type identity

Jerry Anderson Pinheiro, Marcelo Firer

arxiv:1202.6409 v1 · 2012-02-28 · 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{CXC7FIRJHCA2BJXJV45IVW3SMU}

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	2026-05-18T02:38:44.767272Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15c5f2a2293881a0a6e9af3a8adb72650dea6e3a6d8be1d0b271c4a849b4c0ba

Aliases

arxiv: 1202.6409 · arxiv_version: 1202.6409v1 · doi: 10.48550/arxiv.1202.6409 · pith_short_12: CXC7FIRJHCA2 · pith_short_16: CXC7FIRJHCA2BJXJ · pith_short_8: CXC7FIRJ

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/CXC7FIRJHCA2BJXJV45IVW3SMU \
  | 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: 15c5f2a2293881a0a6e9af3a8adb72650dea6e3a6d8be1d0b271c4a849b4c0ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "446117a0389bf6db73a95a33b7c9f1d9865af56d78fee810da53c32031d28dc6",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-02-28T23:24:38Z",
    "title_canon_sha256": "39c6d3dbcfa46743764e08694d04324c98ad31a59935dab27493e6da7fe1fae8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.6409",
    "kind": "arxiv",
    "version": 1
  }
}