Pith Number

pith:A3Z356RT

pith:2018:A3Z356RTJWUAFWTT7BPSRIFCVG

not attested not anchored not stored refs pending

An Algorithm for Integer Least-squares with Equality, Sparsity and Rank Constraints

Arun Ayyar, Nirav Bhatt

arxiv:1811.01383 v1 · 2018-11-04 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A3Z356RTJWUAFWTT7BPSRIFCVG}

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	2026-05-18T00:01:34.467688Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

06f3befa334da802da73f85f28a0a2a99feadf28694678f408271154b3393bee

Aliases

arxiv: 1811.01383 · arxiv_version: 1811.01383v1 · doi: 10.48550/arxiv.1811.01383 · pith_short_12: A3Z356RTJWUA · pith_short_16: A3Z356RTJWUAFWTT · pith_short_8: A3Z356RT

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/A3Z356RTJWUAFWTT7BPSRIFCVG \
  | 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: 06f3befa334da802da73f85f28a0a2a99feadf28694678f408271154b3393bee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2518af6653458df477abaa4ef3a9432eb50854a7a45f5a74584a2ec9c7ee78ad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-11-04T15:02:59Z",
    "title_canon_sha256": "14522221f0c9382b0a16de220364950295175581956d44a88a5da98ac814cd74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.01383",
    "kind": "arxiv",
    "version": 1
  }
}