Pith Number

pith:MHTX7L2A

pith:2019:MHTX7L2ASEFBIU5B6BR62ZOOCL

not attested not anchored not stored refs pending

A complete Heyting algebra whose Scott space is non-sober

Dongsheng Zhao, Xiaoquan Xu, Xiaoyong Xi

arxiv:1903.00615 v1 · 2019-03-02 · 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{MHTX7L2ASEFBIU5B6BR62ZOOCL}

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.

Cited by

1 paper in Pith

Core-compactness of Smyth powerspaces

Receipt and verification

First computed	2026-05-17T23:52:13.997554Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61e77faf40910a1453a1f063ed65ce12fa3c9e4389aac4a3ce60a94bef51c534

Aliases

arxiv: 1903.00615 · arxiv_version: 1903.00615v1 · doi: 10.48550/arxiv.1903.00615 · pith_short_12: MHTX7L2ASEFB · pith_short_16: MHTX7L2ASEFBIU5B · pith_short_8: MHTX7L2A

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/MHTX7L2ASEFBIU5B6BR62ZOOCL \
  | 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: 61e77faf40910a1453a1f063ed65ce12fa3c9e4389aac4a3ce60a94bef51c534

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2fb2c0d265013acd9e8a546b0476619e0c41742ac69ac529d21a5521867fbc2e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2019-03-02T03:09:10Z",
    "title_canon_sha256": "dbfb48985b7a02092f3fa0a6310df979e161df9447cfcfc7f059421ff0a1370b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.00615",
    "kind": "arxiv",
    "version": 1
  }
}