Pith Number

pith:6XZI52BO

pith:2014:6XZI52BOFEEOCPTBBTCYE3KUTQ

not attested not anchored not stored refs pending

Algebraic boundary of matrices of nonnegative rank at most three

Emil Horobet, Kaie Kubjas, Rob H. Eggermont

arxiv:1412.1654 v1 · 2014-12-04 · math.AG · math.AC · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6XZI52BOFEEOCPTBBTCYE3KUTQ}

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	2026-05-18T02:32:06.781448Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5f28ee82e2908e13e610cc5826d549c0ba406797b8d73330e4de64199fffe38

Aliases

arxiv: 1412.1654 · arxiv_version: 1412.1654v1 · doi: 10.48550/arxiv.1412.1654 · pith_short_12: 6XZI52BOFEEO · pith_short_16: 6XZI52BOFEEOCPTB · pith_short_8: 6XZI52BO

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/6XZI52BOFEEOCPTBBTCYE3KUTQ \
  | 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: f5f28ee82e2908e13e610cc5826d549c0ba406797b8d73330e4de64199fffe38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f4420b918178e8acfc444e137aaa4f81640963dcfc1ca1de182aa9d97f8f364",
    "cross_cats_sorted": [
      "math.AC",
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-12-04T13:15:07Z",
    "title_canon_sha256": "1002d6ed4b0b91223451d9c29efce18a136372dc383ffe84f33f90f2bef6043b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.1654",
    "kind": "arxiv",
    "version": 1
  }
}