Pith Number

pith:4DW4AWKH

pith:2017:4DW4AWKHAMPE4KXSKEUMSBZODB

not attested not anchored not stored refs pending

On codimension two flats in Fermat-type arrangements

Grzegorz Malara, Justyna Szpond

arxiv:1705.00639 v1 · 2017-05-01 · math.AG · math.AC · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4DW4AWKHAMPE4KXSKEUMSBZODB}

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	2026-05-18T00:45:10.279727Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0edc05947031e4e2af25128c9072e186bfbcf0415a6dca55b906f52414c1ec1

Aliases

arxiv: 1705.00639 · arxiv_version: 1705.00639v1 · doi: 10.48550/arxiv.1705.00639 · pith_short_12: 4DW4AWKHAMPE · pith_short_16: 4DW4AWKHAMPE4KXS · pith_short_8: 4DW4AWKH

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/4DW4AWKHAMPE4KXSKEUMSBZODB \
  | 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: e0edc05947031e4e2af25128c9072e186bfbcf0415a6dca55b906f52414c1ec1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b775762959c7b0d5182974eb89c861622dbbb283b0eac91261ac3f42a36dfa0",
    "cross_cats_sorted": [
      "math.AC",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-05-01T18:07:06Z",
    "title_canon_sha256": "6e83c8a1afc786c1cbd01d9e66b8bef42bd29b88ecf226680d5fbffb81d024cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.00639",
    "kind": "arxiv",
    "version": 1
  }
}