Pith Number

pith:4W2VVPJB

pith:2026:4W2VVPJBHU3CEVYWBQWJA5RKRE

not attested not anchored not stored refs pending

Combinatorial constructions of Schubert subspace codes

Alessandro Neri, Beatrice Toesca, Gianira N. Alfarano

arxiv:2607.07479 v1 · 2026-07-08 · math.CO · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4W2VVPJBHU3CEVYWBQWJA5RKRE}

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	2026-07-09T01:20:25.970071Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5b55abd213d362257160c2c90762a8910b75285a142e4bfd345b827d49b2d4b

Aliases

arxiv: 2607.07479 · arxiv_version: 2607.07479v1 · doi: 10.48550/arxiv.2607.07479 · pith_short_12: 4W2VVPJBHU3C · pith_short_16: 4W2VVPJBHU3CEVYW · pith_short_8: 4W2VVPJB

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/4W2VVPJBHU3CEVYWBQWJA5RKRE \
  | 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: e5b55abd213d362257160c2c90762a8910b75285a142e4bfd345b827d49b2d4b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f6755dd7462ce130c0a427c21dbe80d7cd2f29321919b17d27af2a3a29671e4",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2026-07-08T14:43:07Z",
    "title_canon_sha256": "154ca658ec5a8f992a7759b668b3b9a5a55dd0e259e71113f354130c504e51b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.07479",
    "kind": "arxiv",
    "version": 1
  }
}