Pith Number

pith:HK66RS2V

pith:2018:HK66RS2VJO23XNRXWKPQLEQALO

not attested not anchored not stored refs pending

A Convergence Analysis on URV Refinement

Limin Wu

arxiv:1803.09352 v1 · 2018-03-25 · math.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{HK66RS2VJO23XNRXWKPQLEQALO}

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	2026-05-18T00:20:11.908338Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3abde8cb554bb5bbb637b29f0592005bad980c75dd3be15dd9e8ac7412bb9219

Aliases

arxiv: 1803.09352 · arxiv_version: 1803.09352v1 · doi: 10.48550/arxiv.1803.09352 · pith_short_12: HK66RS2VJO23 · pith_short_16: HK66RS2VJO23XNRX · pith_short_8: HK66RS2V

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/HK66RS2VJO23XNRXWKPQLEQALO \
  | 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: 3abde8cb554bb5bbb637b29f0592005bad980c75dd3be15dd9e8ac7412bb9219

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a54a1adfdf4c204fe042df09db8cf4367278c336b2a3a7ca67a67cab1584f9d9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-03-25T21:46:20Z",
    "title_canon_sha256": "a3fbf0f7f94b08ba56cc2cff1a2baaeec8a7356a7e959d0f0d966aa9c2132cae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.09352",
    "kind": "arxiv",
    "version": 1
  }
}