Pith Number

pith:NSCIKWFT

pith:2014:NSCIKWFTLEZE2UZ2LALFBHG7D3

not attested not anchored not stored refs pending

Stability Analysis of QR factorization in an Oblique Inner Product

Bradley R. Lowery, Julien Langou

arxiv:1401.5171 v1 · 2014-01-21 · 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{NSCIKWFTLEZE2UZ2LALFBHG7D3}

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	2026-05-18T03:01:34.634941Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c848558b359324d533a5816509cdf1ecdee1d18228e7cea167b7e0a35bb579d

Aliases

arxiv: 1401.5171 · arxiv_version: 1401.5171v1 · doi: 10.48550/arxiv.1401.5171 · pith_short_12: NSCIKWFTLEZE · pith_short_16: NSCIKWFTLEZE2UZ2 · pith_short_8: NSCIKWFT

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/NSCIKWFTLEZE2UZ2LALFBHG7D3 \
  | 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: 6c848558b359324d533a5816509cdf1ecdee1d18228e7cea167b7e0a35bb579d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41020776780e96d0d512327d66e7a386fbf27744c02ec556b8fc1ccf32fc15de",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-01-21T04:29:02Z",
    "title_canon_sha256": "40175243e3dbf61eb019d14460957117bc45b4b10066f1201fd666e2ecea5e86"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.5171",
    "kind": "arxiv",
    "version": 1
  }
}