Pith Number

pith:TVNGCAH5

pith:2018:TVNGCAH5NDPGX4NUGYPLMXKHA6

not attested not anchored not stored refs pending

The epimorphisms of the category Haus are exactly the image-dense morphisms

J\'er\^ome Lapuyade-Lahorgue

arxiv:1810.00778 v1 · 2018-10-01 · 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{TVNGCAH5NDPGX4NUGYPLMXKHA6}

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	2026-05-18T00:04:24.861971Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9d5a6100fd68de6bf1b4361eb65d4707802852f6ef20d1161b5dea4c2f8737a0

Aliases

arxiv: 1810.00778 · arxiv_version: 1810.00778v1 · doi: 10.48550/arxiv.1810.00778 · pith_short_12: TVNGCAH5NDPG · pith_short_16: TVNGCAH5NDPGX4NU · pith_short_8: TVNGCAH5

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/TVNGCAH5NDPGX4NUGYPLMXKHA6 \
  | 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: 9d5a6100fd68de6bf1b4361eb65d4707802852f6ef20d1161b5dea4c2f8737a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a8aa2832f74ad0ea7179a83a1d6ccdb8b942d54dbaad288537cbbe815924343",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2018-10-01T15:58:24Z",
    "title_canon_sha256": "22f48c6a42f378406b333378e3faf160c93186776d2e59d90290e73775a74e96"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.00778",
    "kind": "arxiv",
    "version": 1
  }
}