Pith Number

pith:7EMQNL52

pith:2014:7EMQNL52CJNCEYXYODU5XMLYPW

not attested not anchored not stored refs pending

Properties of Soft Semi-open and Soft semi-closed Sets

Sabir Hussain

arxiv:1409.3459 v1 · 2014-09-09 · math.GM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7EMQNL52CJNCEYXYODU5XMLYPW}

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	2026-05-18T02:43:01.305835Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f91906afba125a2262f870e9dbb1787d8d7844c658438ee3f065ed7ab4409d3f

Aliases

arxiv: 1409.3459 · arxiv_version: 1409.3459v1 · doi: 10.48550/arxiv.1409.3459 · pith_short_12: 7EMQNL52CJNC · pith_short_16: 7EMQNL52CJNCEYXY · pith_short_8: 7EMQNL52

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/7EMQNL52CJNCEYXYODU5XMLYPW \
  | 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: f91906afba125a2262f870e9dbb1787d8d7844c658438ee3f065ed7ab4409d3f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f00d44ffeaac514e31802741bcefb6880cb2b8bab52e7d16c958cb7532fb289f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GM",
    "submitted_at": "2014-09-09T12:08:57Z",
    "title_canon_sha256": "9aa1df6b86fa123a4930bbe55e8f92239544e3d85e2bb3e7fd01ea79a32f931f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.3459",
    "kind": "arxiv",
    "version": 1
  }
}