Pith Number

pith:HSDKKEVS

pith:2017:HSDKKEVS7QHOKYY54SXVHUYSYB

not attested not anchored not stored refs pending

Configurations of Linear Spaces of Codimension Two and the Containment Problem

Ben Drabkin

arxiv:1704.07870 v1 · 2017-04-25 · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HSDKKEVS7QHOKYY54SXVHUYSYB}

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	2026-05-18T00:45:31.671432Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c86a512b2fc0ee5631de4af53d312c0631753b43303d336c5f9b76fec03b2d3

Aliases

arxiv: 1704.07870 · arxiv_version: 1704.07870v1 · doi: 10.48550/arxiv.1704.07870 · pith_short_12: HSDKKEVS7QHO · pith_short_16: HSDKKEVS7QHOKYY5 · pith_short_8: HSDKKEVS

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/HSDKKEVS7QHOKYY54SXVHUYSYB \
  | 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: 3c86a512b2fc0ee5631de4af53d312c0631753b43303d336c5f9b76fec03b2d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b3d068e47c836bfc5f22c47c957873125af54e1cab2924f3accb041e6b4f010e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2017-04-25T19:14:51Z",
    "title_canon_sha256": "cf80945c2eefb5aa43ab99a84ea72ac1ba9de9bee278fc3341c13d475b06e277"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.07870",
    "kind": "arxiv",
    "version": 1
  }
}