Pith Number

pith:E6X5BMQB

pith:2015:E6X5BMQBAW7PNBZKCO63UGO5R5

not attested not anchored not stored refs pending

A new Lanczos type algorithm for system of linear equations

Abdellah Salhi, Muhammad Farooq

arxiv:1505.07102 v1 · 2015-05-26 · 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{E6X5BMQBAW7PNBZKCO63UGO5R5}

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	2026-05-18T02:02:07.461903Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27afd0b20105bef6872a13bdba19dd8f53691d4db5a4ee10e998c5e730d96cef

Aliases

arxiv: 1505.07102 · arxiv_version: 1505.07102v1 · doi: 10.48550/arxiv.1505.07102 · pith_short_12: E6X5BMQBAW7P · pith_short_16: E6X5BMQBAW7PNBZK · pith_short_8: E6X5BMQB

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/E6X5BMQBAW7PNBZKCO63UGO5R5 \
  | 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: 27afd0b20105bef6872a13bdba19dd8f53691d4db5a4ee10e998c5e730d96cef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2cda9320bd1b47aa849b2d32c72f121cf6ad492f088bb2709d2e97c98244aad3",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-05-26T09:36:11Z",
    "title_canon_sha256": "5780d49205803234960c1b3633cda7a85f019f25b516734edc046589ec496ede"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.07102",
    "kind": "arxiv",
    "version": 1
  }
}