Pith Number

pith:O7DDYSV4

pith:2018:O7DDYSV4FCJXUFV3AXQJ7I2JZJ

not attested not anchored not stored refs pending

On ideals generated by two generic quadratic forms in the exterior algebra

Gleb Nenashev, Samuel Lundqvist, Veronica Crispin Qui\~nonez

arxiv:1803.08918 v1 · 2018-03-23 · 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{O7DDYSV4FCJXUFV3AXQJ7I2JZJ}

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	2026-05-17T23:41:27.746159Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77c63c4abc28937a16bb05e09fa349ca76f27be0c56d7cac38f0dcd1f345403b

Aliases

arxiv: 1803.08918 · arxiv_version: 1803.08918v1 · doi: 10.48550/arxiv.1803.08918 · pith_short_12: O7DDYSV4FCJX · pith_short_16: O7DDYSV4FCJXUFV3 · pith_short_8: O7DDYSV4

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/O7DDYSV4FCJXUFV3AXQJ7I2JZJ \
  | 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: 77c63c4abc28937a16bb05e09fa349ca76f27be0c56d7cac38f0dcd1f345403b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2faf435623a763c069c70761146ad9ee45a587a4c3220f74b42f8bd214c9437f",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2018-03-23T17:59:03Z",
    "title_canon_sha256": "9337f60cc42a9e972f8fd3c2dc0daa2ce8e4f6f01f70c801048ffca3b470a0ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.08918",
    "kind": "arxiv",
    "version": 1
  }
}