Pith Number

pith:I4RN5I3C

pith:2021:I4RN5I3CXMMTMNMMDF56PRPU5H

not attested not anchored not stored refs pending

The equivalence of optimal perspective formulation and Shor's SDP for quadratic programs with indicator variables

Alper Atamt\"urk, Andr\'es G\'omez, Shaoning Han

arxiv:2112.04618 v2 · 2021-12-08 · 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{I4RN5I3CXMMTMNMMDF56PRPU5H}

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	2026-07-05T03:54:04.052634Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4722dea362bb1936358c197be7c5f4e9de8c1eeed742907b9d696cbfa43bc755

Aliases

arxiv: 2112.04618 · arxiv_version: 2112.04618v2 · doi: 10.48550/arxiv.2112.04618 · pith_short_12: I4RN5I3CXMMT · pith_short_16: I4RN5I3CXMMTMNMM · pith_short_8: I4RN5I3C

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/I4RN5I3CXMMTMNMMDF56PRPU5H \
  | 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: 4722dea362bb1936358c197be7c5f4e9de8c1eeed742907b9d696cbfa43bc755

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2b7d3a5af866a692d5130ccd8ab8e6884f10c011dac71d892db8241ac18948f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2021-12-08T23:14:58Z",
    "title_canon_sha256": "b148a942894cd88c230c5f44e05bd0828d825e5ba1b1677ea3e0b2faf036816c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.04618",
    "kind": "arxiv",
    "version": 2
  }
}