Pith Number

pith:6HGQMMPO

pith:2014:6HGQMMPOBIKTGMOVGGSQ4CTEIS

not attested not anchored not stored refs pending

Optimal subgradient algorithms with application to large-scale linear inverse problems

Masoud Ahookhosh

arxiv:1402.7291 v3 · 2014-02-28 · 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{6HGQMMPOBIKTGMOVGGSQ4CTEIS}

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	2026-05-18T02:51:00.843604Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f1cd0631ee0a153331d531a50e0a64449d6609d894d2ff427212e1dfd2d6ee5e

Aliases

arxiv: 1402.7291 · arxiv_version: 1402.7291v3 · doi: 10.48550/arxiv.1402.7291 · pith_short_12: 6HGQMMPOBIKT · pith_short_16: 6HGQMMPOBIKTGMOV · pith_short_8: 6HGQMMPO

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/6HGQMMPOBIKTGMOVGGSQ4CTEIS \
  | 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: f1cd0631ee0a153331d531a50e0a64449d6609d894d2ff427212e1dfd2d6ee5e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d38b3b69ce1ddd7b515be2bf6c504d33f488a1bb9cc050b3534a85e8032624f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2014-02-28T16:01:49Z",
    "title_canon_sha256": "e27ae6d5f2f382b5abafaeef15afed8df79a989877bdcb07637911df7b7b9e7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.7291",
    "kind": "arxiv",
    "version": 3
  }
}