Pith Number

pith:Q2HRVISS

pith:2013:Q2HRVISSIWIV6PMWFFR7VCIGXJ

not attested not anchored not stored refs pending

Estimates for the asymptotic convergence factor of two intervals

Klaus Schiefermayr

arxiv:1306.5866 v1 · 2013-06-25 · math.CV

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q2HRVISSIWIV6PMWFFR7VCIGXJ}

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.

Cited by

1 paper in Pith

Adaptive LSQR Preconditioning from One Small Sketch

Receipt and verification

First computed	2026-05-18T03:19:58.307601Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

868f1aa25245915f3d962963fa8906ba47054f93a5d7a02e445153cd5a611736

Aliases

arxiv: 1306.5866 · arxiv_version: 1306.5866v1 · doi: 10.48550/arxiv.1306.5866 · pith_short_12: Q2HRVISSIWIV · pith_short_16: Q2HRVISSIWIV6PMW · pith_short_8: Q2HRVISS

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/Q2HRVISSIWIV6PMWFFR7VCIGXJ \
  | 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: 868f1aa25245915f3d962963fa8906ba47054f93a5d7a02e445153cd5a611736

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1c48b2ce5fdf873949145adc756ae15921c703d6b4ef7ed68764d4a85fcb344",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2013-06-25T07:33:17Z",
    "title_canon_sha256": "9bae4f9a8bd0d6a8a2884b112a887e280bd7a10693d871f39ff4799e83cca254"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.5866",
    "kind": "arxiv",
    "version": 1
  }
}