Pith Number

pith:HV7ZCUC3

pith:2002:HV7ZCUC3YCANUEVYEPHSU5NCLD

not attested not anchored not stored refs pending

Hereditary topological diagonalizations and the Menger-Hurewicz Conjectures

Boaz Tsaban, Tomek Bartoszynski

arxiv:math/0208224 v10 · 2002-08-28 · math.LO · math.CA · math.CO · 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{HV7ZCUC3YCANUEVYEPHSU5NCLD}

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	2026-05-18T04:37:23.218089Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d7f91505bc080da12b823cf2a75a258ddac2422f52d5a3f35e1659d180a41b9

Aliases

arxiv: math/0208224 · arxiv_version: math/0208224v10 · doi: 10.48550/arxiv.math/0208224 · pith_short_12: HV7ZCUC3YCAN · pith_short_16: HV7ZCUC3YCANUEVY · pith_short_8: HV7ZCUC3

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/HV7ZCUC3YCANUEVYEPHSU5NCLD \
  | 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: 3d7f91505bc080da12b823cf2a75a258ddac2422f52d5a3f35e1659d180a41b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83c8ba03b3f733e4eb1bf6381f54883b53dd91d89aa57da642f7f49a8b07c504",
    "cross_cats_sorted": [
      "math.CA",
      "math.CO",
      "math.GN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2002-08-28T18:30:34Z",
    "title_canon_sha256": "cb7489af41c708f019af0ff0577ec20af68f2925b0ac295e6825f8e087392122"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0208224",
    "kind": "arxiv",
    "version": 10
  }
}