Pith Number

pith:M4OANXLA

pith:2017:M4OANXLAR5QFVGAPHA6X7MIEO3

not attested not anchored not stored refs pending

Compact representation of the full Broyden class of quasi-Newton updates

Jennifer B. Erway, Omar DeGuchy, Roummel F. Marcia

arxiv:1705.08306 v1 · 2017-05-23 · 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{M4OANXLAR5QFVGAPHA6X7MIEO3}

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	2026-05-18T00:43:48.678846Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

671c06dd608f605a980f383d7fb10476f558afa291d142fe7a027b7361e05c2f

Aliases

arxiv: 1705.08306 · arxiv_version: 1705.08306v1 · doi: 10.48550/arxiv.1705.08306 · pith_short_12: M4OANXLAR5QF · pith_short_16: M4OANXLAR5QFVGAP · pith_short_8: M4OANXLA

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/M4OANXLAR5QFVGAPHA6X7MIEO3 \
  | 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: 671c06dd608f605a980f383d7fb10476f558afa291d142fe7a027b7361e05c2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b6e4b24aa2c5e13d9b5efb58fd5ff193bbea8e5eea5a8830afc7f387cd9cbcf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-05-23T14:22:38Z",
    "title_canon_sha256": "ce71fec348af748b5c6015609098433c922cabc28a05e49ff64c37489c7a2014"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.08306",
    "kind": "arxiv",
    "version": 1
  }
}