Pith Number

pith:GEWYGHCN

pith:2021:GEWYGHCNESKXWQ2C4ZLII26ACA

not attested not anchored not stored refs pending

Sparse Conic Reformulation of Structured QCQPs based on Copositive Optimization with Applications in Stochastic Optimization

Markus Gabl

arxiv:2101.06219 v3 · 2021-01-15 · 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{GEWYGHCNESKXWQ2C4ZLII26ACA}

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	2026-07-05T05:36:28.825048Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

312d831c4d24957b4342e656846bc01020ec39514439ad0291de4743d5161b22

Aliases

arxiv: 2101.06219 · arxiv_version: 2101.06219v3 · doi: 10.48550/arxiv.2101.06219 · pith_short_12: GEWYGHCNESKX · pith_short_16: GEWYGHCNESKXWQ2C · pith_short_8: GEWYGHCN

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/GEWYGHCNESKXWQ2C4ZLII26ACA \
  | 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: 312d831c4d24957b4342e656846bc01020ec39514439ad0291de4743d5161b22

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7bdd46dd5992d0e2334787115e2c210ace8933f633555e3162ae143975a289ef",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2021-01-15T17:06:42Z",
    "title_canon_sha256": "005d20fcb1ea13c7527e615296cccf6e800d7f724c5b9993517969f1c758f757"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.06219",
    "kind": "arxiv",
    "version": 3
  }
}