Pith Number

pith:JI5I4S4F

pith:2017:JI5I4S4FJDWRTIXVFY3VZLM4ZW

not attested not anchored not stored refs pending

On efficiently solving the subproblems of a level-set method for fused lasso problems

Defeng Sun, Kim-Chuan Toh, Xudong Li

arxiv:1706.08732 v1 · 2017-06-27 · 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{JI5I4S4FJDWRTIXVFY3VZLM4ZW}

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	2026-05-18T00:41:31.179548Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a3a8e4b8548ed19a2f52e375cad9ccdbe7f8be46269c313fe34a9976c1876e6

Aliases

arxiv: 1706.08732 · arxiv_version: 1706.08732v1 · doi: 10.48550/arxiv.1706.08732 · pith_short_12: JI5I4S4FJDWR · pith_short_16: JI5I4S4FJDWRTIXV · pith_short_8: JI5I4S4F

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/JI5I4S4FJDWRTIXVFY3VZLM4ZW \
  | 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: 4a3a8e4b8548ed19a2f52e375cad9ccdbe7f8be46269c313fe34a9976c1876e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80b19f399f43c58e67664f109f338c0955c3ca790fa7bd0d5b63fbc806564524",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-06-27T08:58:57Z",
    "title_canon_sha256": "832c6b377e74abf2a6080361cc967e2a623400f5b104993790e58b7c583edc9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.08732",
    "kind": "arxiv",
    "version": 1
  }
}