Pith Number

pith:LJWNSYHF

pith:2019:LJWNSYHFEQOLPSPI7TAJ7LIEHB

not attested not anchored not stored refs pending

Compactly generated spaces and quasi-spaces in topology

Willian Ribeiro

arxiv:1908.04287 v1 · 2019-08-12 · math.CT · 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{LJWNSYHFEQOLPSPI7TAJ7LIEHB}

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	2026-07-04T23:53:22.027659Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a6cd960e5241cb7c9e8fcc09fad04385ca62a851dcbf7919f2429621bdb7ab5

Aliases

arxiv: 1908.04287 · arxiv_version: 1908.04287v1 · doi: 10.48550/arxiv.1908.04287 · pith_short_12: LJWNSYHFEQOL · pith_short_16: LJWNSYHFEQOLPSPI · pith_short_8: LJWNSYHF

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/LJWNSYHFEQOLPSPI7TAJ7LIEHB \
  | 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: 5a6cd960e5241cb7c9e8fcc09fad04385ca62a851dcbf7919f2429621bdb7ab5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53d8ae3fa8f24ca7ea24bbefef25a8834f2504d19197b2eae590214c86e93092",
    "cross_cats_sorted": [
      "math.GN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2019-08-12T17:56:39Z",
    "title_canon_sha256": "b3b44bab0273c31eb4081189869a61a63f1789aad1486e4db9b8dfbcea24fb5f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04287",
    "kind": "arxiv",
    "version": 1
  }
}