Pith Number

pith:DRUWTCIL

pith:2018:DRUWTCILUGAPRN7NAN3GNW4WHJ

not attested not anchored not stored refs pending

A convex program for bilinear inversion of sparse vectors

Ali Ahmed, Alireza Aghasi, Babhru Joshi, Paul Hand

arxiv:1809.08359 v1 · 2018-09-22 · math.OC · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DRUWTCILUGAPRN7NAN3GNW4WHJ}

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	2026-05-17T23:56:47.112423Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c6969890ba180f8b7ed037666db963a735b3e02f5b92bd7d28c9cd48662c830

Aliases

arxiv: 1809.08359 · arxiv_version: 1809.08359v1 · doi: 10.48550/arxiv.1809.08359 · pith_short_12: DRUWTCILUGAP · pith_short_16: DRUWTCILUGAPRN7N · pith_short_8: DRUWTCIL

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/DRUWTCILUGAPRN7NAN3GNW4WHJ \
  | 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: 1c6969890ba180f8b7ed037666db963a735b3e02f5b92bd7d28c9cd48662c830

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f93ff91e31c59db57ce36b373afad0f9bec65574beda624ebdf016635dd4e306",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-09-22T01:03:00Z",
    "title_canon_sha256": "4c95f7d380b13e11e1398ea72d640789e1885f8fc9f6cd7312d145359e747eb9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.08359",
    "kind": "arxiv",
    "version": 1
  }
}