Pith Number

pith:AMEBQW3Y

pith:2018:AMEBQW3YMTKMDOS47M3KO7GIEG

not attested not anchored not stored refs pending

Topological and metric spaces are full subcategories of the category of simplicial objects of the category of filters

Misha Gavrilovich

arxiv:1802.08521 v1 · 2018-02-23 · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AMEBQW3YMTKMDOS47M3KO7GIEG}

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	2026-05-18T00:22:41.318111Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0308185b7864d4c1ba5cfb36a77cc8219e737950bdc1115cc101332566ead7e3

Aliases

arxiv: 1802.08521 · arxiv_version: 1802.08521v1 · doi: 10.48550/arxiv.1802.08521 · pith_short_12: AMEBQW3YMTKM · pith_short_16: AMEBQW3YMTKMDOS4 · pith_short_8: AMEBQW3Y

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/AMEBQW3YMTKMDOS47M3KO7GIEG \
  | 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: 0308185b7864d4c1ba5cfb36a77cc8219e737950bdc1115cc101332566ead7e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "822f50462250b8e67d1cee504cc997eebe169d97130ac05e3977fc29ac282817",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2018-02-23T13:24:31Z",
    "title_canon_sha256": "54d98c097d6835415c42d95cc1cb6ee9427db242cc3ce1d858a1e73e0bf0071e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.08521",
    "kind": "arxiv",
    "version": 1
  }
}