Pith Number

pith:FY44DMXA

pith:2016:FY44DMXAQKKLUYY65IMOZAXVFO

not attested not anchored not stored refs pending

A fast, deterministic algorithm for computing a Hermite Normal Form of a polynomial matrix

George Labahn, Wei Zhou

arxiv:1602.02049 v1 · 2016-02-05 · cs.SC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FY44DMXAQKKLUYY65IMOZAXVFO}

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	2026-05-18T01:21:14.665655Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e39c1b2e08294ba631eea18ec82f52b9ff5529af07ff669a4fff141de547ac0

Aliases

arxiv: 1602.02049 · arxiv_version: 1602.02049v1 · doi: 10.48550/arxiv.1602.02049 · pith_short_12: FY44DMXAQKKL · pith_short_16: FY44DMXAQKKLUYY6 · pith_short_8: FY44DMXA

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/FY44DMXAQKKLUYY65IMOZAXVFO \
  | 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: 2e39c1b2e08294ba631eea18ec82f52b9ff5529af07ff669a4fff141de547ac0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b352027b6fbaf1b891b74fdeafe395bb1742132f899b77892ceb1228ad143fc1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SC",
    "submitted_at": "2016-02-05T14:59:34Z",
    "title_canon_sha256": "a9f642a298d98a3246e76f450d03d59edc82e12daa54f470adb28c3bc3aa6383"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.02049",
    "kind": "arxiv",
    "version": 1
  }
}