Pith Number

pith:PFDPHGIS

pith:2019:PFDPHGISAW7S67HTJAJL5DIUGC

not attested not anchored not stored refs pending

A Newton-bracketing method for a simple conic optimization problem

Kim-Chuan Toh, Masakazu Kojima, Sunyoung Kim

arxiv:1905.12840 v1 · 2019-05-30 · 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{PFDPHGISAW7S67HTJAJL5DIUGC}

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	2026-05-17T23:44:39.516016Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7946f3991205bf2f7cf34812be8d14309a528690099649731cd31172c73552e1

Aliases

arxiv: 1905.12840 · arxiv_version: 1905.12840v1 · doi: 10.48550/arxiv.1905.12840 · pith_short_12: PFDPHGISAW7S · pith_short_16: PFDPHGISAW7S67HT · pith_short_8: PFDPHGIS

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/PFDPHGISAW7S67HTJAJL5DIUGC \
  | 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: 7946f3991205bf2f7cf34812be8d14309a528690099649731cd31172c73552e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03af56be34c942bbd44614cbd88e3a9fa036db091b26bbd099ff990a953a57e1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-05-30T03:24:38Z",
    "title_canon_sha256": "514881920623ddf982d45551839a81e504a26d96d1c2a431297cc77794c47310"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.12840",
    "kind": "arxiv",
    "version": 1
  }
}