Pith Number

pith:CDGCDTPA

pith:2014:CDGCDTPARJAZ34OWJH462WHBIA

not attested not anchored not stored refs pending

A Switching Approach to Avoid Breakdown in Lanczos-type Algorithms

Abdellah Salhi, Muhammad Farooq

arxiv:1405.2839 v1 · 2014-05-09 · 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{CDGCDTPARJAZ34OWJH462WHBIA}

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	2026-05-18T02:48:17.040674Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

10cc21cde08a419df1d649f9ed58e1403fd624d4346c16b42faf5647341e83cb

Aliases

arxiv: 1405.2839 · arxiv_version: 1405.2839v1 · doi: 10.48550/arxiv.1405.2839 · pith_short_12: CDGCDTPARJAZ · pith_short_16: CDGCDTPARJAZ34OW · pith_short_8: CDGCDTPA

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/CDGCDTPARJAZ34OWJH462WHBIA \
  | 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: 10cc21cde08a419df1d649f9ed58e1403fd624d4346c16b42faf5647341e83cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87e2231843c0704977a265268604e532bd2f2a3a539bc2ed799c2a0d803dc7a1",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-05-09T02:07:38Z",
    "title_canon_sha256": "47af91f9324aa359b48494626c1a40177967ebf97c75559cf8d0f5212687f475"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.2839",
    "kind": "arxiv",
    "version": 1
  }
}