Pith Number

pith:FHWWCCBZ

pith:2012:FHWWCCBZTXZA6MX53DIK5M6Z6W

not attested not anchored not stored refs pending

Nonsmooth method for constrained optimization

Kazufumi Ito, Tomoya Takeuchi

arxiv:1210.1301 v1 · 2012-10-04 · 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{FHWWCCBZTXZA6MX53DIK5M6Z6W}

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	2026-05-18T03:44:03.985006Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29ed6108399df20f32fdd8d0aeb3d9f58fe596447d0908aaa0b08b70adb1bc72

Aliases

arxiv: 1210.1301 · arxiv_version: 1210.1301v1 · doi: 10.48550/arxiv.1210.1301 · pith_short_12: FHWWCCBZTXZA · pith_short_16: FHWWCCBZTXZA6MX5 · pith_short_8: FHWWCCBZ

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/FHWWCCBZTXZA6MX53DIK5M6Z6W \
  | 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: 29ed6108399df20f32fdd8d0aeb3d9f58fe596447d0908aaa0b08b70adb1bc72

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "464c009d9fe9460e3ede8f3f9ae04a4087de0e9abbc91d0c9529003f834b7454",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2012-10-04T05:40:32Z",
    "title_canon_sha256": "8521f2cfe8a6e8747b26206257bb18772d4b47ad8a0a67ffe1cc9e35ae10afa5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.1301",
    "kind": "arxiv",
    "version": 1
  }
}