Pith Number

pith:ANC6SRMN

pith:2021:ANC6SRMNRYFEDWWBMARCC5676V

not attested not anchored not stored refs pending

A numerical method for computing the Jordan Canonical Form

Tien-Yien Li, Zhonggang Zeng

arxiv:2103.02086 v1 · 2021-03-02 · math.NA · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ANC6SRMNRYFEDWWBMARCC5676V}

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	2026-07-05T02:20:00.135344Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0345e9458d8e0a41dac160222177dff554b398cb7efb6e78fa08ddca3b842a35

Aliases

arxiv: 2103.02086 · arxiv_version: 2103.02086v1 · doi: 10.48550/arxiv.2103.02086 · pith_short_12: ANC6SRMNRYFE · pith_short_16: ANC6SRMNRYFEDWWB · pith_short_8: ANC6SRMN

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/ANC6SRMNRYFEDWWBMARCC5676V \
  | 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: 0345e9458d8e0a41dac160222177dff554b398cb7efb6e78fa08ddca3b842a35

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1ec020df9e2c6cb9ecda93759394702eb3f6491f35b1ad176e5852b5a32ef38",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2021-03-02T23:21:58Z",
    "title_canon_sha256": "6431bdc8a9a0632f5de4190e1046ceb112c502338f4ba4517dd15dc384e4f6c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.02086",
    "kind": "arxiv",
    "version": 1
  }
}