Pith Number

pith:4A4AFECO

pith:2014:4A4AFECOYXQPTEYAMQPCQ2IY7K

not attested not anchored not stored refs pending

A technique for updating hierarchical skeletonization-based factorizations of integral operators

Anil Damle, Kenneth L. Ho, Lexing Ying, Victor Minden

arxiv:1411.5706 v3 · 2014-11-20 · 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{4A4AFECOYXQPTEYAMQPCQ2IY7K}

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	2026-05-18T00:50:48.180431Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e03802904ec5e0f99300641e286918faa2a17db5ce1180a61ffa3d66de172bd3

Aliases

arxiv: 1411.5706 · arxiv_version: 1411.5706v3 · doi: 10.48550/arxiv.1411.5706 · pith_short_12: 4A4AFECOYXQP · pith_short_16: 4A4AFECOYXQPTEYA · pith_short_8: 4A4AFECO

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/4A4AFECOYXQPTEYAMQPCQ2IY7K \
  | 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: e03802904ec5e0f99300641e286918faa2a17db5ce1180a61ffa3d66de172bd3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f7f2208509f7f17659904e4fb72856a958f10fe49457101b62afcfd1d59ff04",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-11-20T21:40:24Z",
    "title_canon_sha256": "9020cb4d3fb3d9fecf0f1f987af7f9172b57f88d296a45ce1101c6a00f53d9a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.5706",
    "kind": "arxiv",
    "version": 3
  }
}