Pith Number

pith:QDCVAX2B

pith:2014:QDCVAX2BSZNVI6XUY67JI35V7R

not attested not anchored not stored refs pending

Productively Lindel\"of spaces of countable tightness

Andrea Medini, Lyubomyr Zdomskyy

arxiv:1405.6107 v3 · 2014-05-23 · math.GN · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QDCVAX2BSZNVI6XUY67JI35V7R}

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	2026-05-18T00:30:09.699404Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80c5505f41965b547af4c7be946fb5fc6e7cf994144ace131e5e416dd714341d

Aliases

arxiv: 1405.6107 · arxiv_version: 1405.6107v3 · doi: 10.48550/arxiv.1405.6107 · pith_short_12: QDCVAX2BSZNV · pith_short_16: QDCVAX2BSZNVI6XU · pith_short_8: QDCVAX2B

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/QDCVAX2BSZNVI6XUY67JI35V7R \
  | 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: 80c5505f41965b547af4c7be946fb5fc6e7cf994144ace131e5e416dd714341d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "adc6a6f4eb01a421d1fe58e9aaa78ae497d8ace214258a57d60d83c8a00e7806",
    "cross_cats_sorted": [
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2014-05-23T15:58:01Z",
    "title_canon_sha256": "1f4706beceda1aa571f5cc9ee4401a485991b379baa28d3a9185316e71a06684"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.6107",
    "kind": "arxiv",
    "version": 3
  }
}