Pith Number

pith:QOUXLGYA

pith:2017:QOUXLGYA3J2NW54E433GNA7GWA

not attested not anchored not stored refs pending

Semi Lamda*-Closed Sets and New Separation Axioms in Alexandroff Spaces

Amar Kumar Banerjee, Jagannath Pal

arxiv:1709.09048 v1 · 2017-09-25 · math.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QOUXLGYA3J2NW54E433GNA7GWA}

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	2026-05-18T00:34:21.291915Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83a9759b00da74db7784e6f66683e6b00d4863dfb4ad9c502ba609ee14f5672b

Aliases

arxiv: 1709.09048 · arxiv_version: 1709.09048v1 · doi: 10.48550/arxiv.1709.09048 · pith_short_12: QOUXLGYA3J2N · pith_short_16: QOUXLGYA3J2NW54E · pith_short_8: QOUXLGYA

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/QOUXLGYA3J2NW54E433GNA7GWA \
  | 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: 83a9759b00da74db7784e6f66683e6b00d4863dfb4ad9c502ba609ee14f5672b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "715674841ed767bee727252b693e3fc08cb55052d59bbfb88a1c65df66f85fdf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2017-09-25T10:48:13Z",
    "title_canon_sha256": "0f922e1b3eaa508e594df22edc1a34587361c43254589b14e31f4ac3d90b690d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.09048",
    "kind": "arxiv",
    "version": 1
  }
}