Pith Number

pith:FZHETDHO

pith:2009:FZHETDHOFXQHX55BKKQTGM6G7I

not attested not anchored not stored refs pending

Characterizing the Cantor bi-cube in asymptotic categories

Ihor Zarichnyi, Taras Banakh

arxiv:0908.3687 v4 · 2009-08-25 · math.MG · math.GR · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FZHETDHOFXQHX55BKKQTGM6G7I}

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	2026-05-18T04:11:29.100694Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e4e498cee2de07bf7a152a13333c6fa35c8bc38598ff5f5f110e62076414f2a

Aliases

arxiv: 0908.3687 · arxiv_version: 0908.3687v4 · doi: 10.48550/arxiv.0908.3687 · pith_short_12: FZHETDHOFXQH · pith_short_16: FZHETDHOFXQHX55B · pith_short_8: FZHETDHO

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/FZHETDHOFXQHX55BKKQTGM6G7I \
  | 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: 2e4e498cee2de07bf7a152a13333c6fa35c8bc38598ff5f5f110e62076414f2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5352e9a2599aaf735a890ed8c58b20142ae2080d15aade671161e73ad01b18b3",
    "cross_cats_sorted": [
      "math.GR",
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2009-08-25T20:57:57Z",
    "title_canon_sha256": "5437f5d40662238b2011c4e9bab58ca0a36e6768875e156064fdefd20627761d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.3687",
    "kind": "arxiv",
    "version": 4
  }
}