Pith Number

pith:E55GAMG4

pith:2010:E55GAMG4C4Q3E5JF2ZHJXT2P4T

not attested not anchored not stored refs pending

On monomorphic topological functors with finite supports

Marta Martynenko, Michael Zarichnyi, Taras Banakh

arxiv:1004.0457 v2 · 2010-04-03 · math.CT · math.GN · 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{E55GAMG4C4Q3E5JF2ZHJXT2P4T}

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	2026-05-18T03:38:14.575333Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

277a6030dc1721b27525d64e9bcf4fe4d7c0a9463c1d3550b72c1603ff1784af

Aliases

arxiv: 1004.0457 · arxiv_version: 1004.0457v2 · doi: 10.48550/arxiv.1004.0457 · pith_short_12: E55GAMG4C4Q3 · pith_short_16: E55GAMG4C4Q3E5JF · pith_short_8: E55GAMG4

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/E55GAMG4C4Q3E5JF2ZHJXT2P4T \
  | 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: 277a6030dc1721b27525d64e9bcf4fe4d7c0a9463c1d3550b72c1603ff1784af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "186e8c98d84041f132aa2bdac481d51807ac6dcdfdb602790f8eca0490980e94",
    "cross_cats_sorted": [
      "math.GN",
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2010-04-03T16:53:04Z",
    "title_canon_sha256": "bbf89e8d7f1227bfac3b65937eea350f157b79da1c9710fb46dfff3244bdc99b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.0457",
    "kind": "arxiv",
    "version": 2
  }
}