Pith Number

pith:4MSX2TUX

pith:2012:4MSX2TUXERB3OCKOMPNZGOOQGY

not attested not anchored not stored refs pending

Low rank approximation of polynomials

Alexander Schrijver

arxiv:1211.3569 v1 · 2012-11-15 · math.CO · 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{4MSX2TUXERB3OCKOMPNZGOOQGY}

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	2026-05-18T03:40:39.397918Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3257d4e972443b7094e63db9339d03618dd53246ea103afd6e6ba94f2f4d96f

Aliases

arxiv: 1211.3569 · arxiv_version: 1211.3569v1 · doi: 10.48550/arxiv.1211.3569 · pith_short_12: 4MSX2TUXERB3 · pith_short_16: 4MSX2TUXERB3OCKO · pith_short_8: 4MSX2TUX

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/4MSX2TUXERB3OCKOMPNZGOOQGY \
  | 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: e3257d4e972443b7094e63db9339d03618dd53246ea103afd6e6ba94f2f4d96f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "987ad78fa652a77982cf5a04d940c16349c462cf49272c1e31f36238000ceaf8",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2012-11-15T10:46:47Z",
    "title_canon_sha256": "9b4f270199d29bef908aa93555384ca4602ce83d1ab3f95b85d912214026d0a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.3569",
    "kind": "arxiv",
    "version": 1
  }
}