Pith Number

pith:6LGXDVHV

pith:2015:6LGXDVHVOXH5LJKWLBNBVGXW22

not attested not anchored not stored refs pending

Nonlinear Residual Minimization by Iteratively Reweighted Least Squares

Juliane Sigl

arxiv:1504.06815 v1 · 2015-04-26 · 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{6LGXDVHVOXH5LJKWLBNBVGXW22}

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	2026-05-18T02:17:44.331047Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f2cd71d4f575cfd5a556585a1a9af6d6820f56bf8fe5a938f33be1665eef54df

Aliases

arxiv: 1504.06815 · arxiv_version: 1504.06815v1 · doi: 10.48550/arxiv.1504.06815 · pith_short_12: 6LGXDVHVOXH5 · pith_short_16: 6LGXDVHVOXH5LJKW · pith_short_8: 6LGXDVHV

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/6LGXDVHVOXH5LJKWLBNBVGXW22 \
  | 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: f2cd71d4f575cfd5a556585a1a9af6d6820f56bf8fe5a938f33be1665eef54df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ab29acecd88f3e2f97481736d635c0e6e57c791a1cd603e0f55677939494de5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-04-26T13:01:59Z",
    "title_canon_sha256": "b7ad894609b6623cee9e94474246e339acf5bef69bec60596c105aaabf26db4b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.06815",
    "kind": "arxiv",
    "version": 1
  }
}