Pith Number

pith:7VX7LKT2

pith:2017:7VX7LKT2WIEH7CW7PIZTIQZTYO

not attested not anchored not stored refs pending

Bilevel Optimization based on Iterative Approximation of Multiple Mappings

Ankur Sinha, Kalyanmoy Deb, Pekka Malo, Zhichao Lu

arxiv:1702.03394 v2 · 2017-02-11 · 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{7VX7LKT2WIEH7CW7PIZTIQZTYO}

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	2026-05-18T00:44:57.350878Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd6ff5aa7ab2087f8adf7a33344333c3ad45e69eb7b2af17e2a3bd080fc7ff5a

Aliases

arxiv: 1702.03394 · arxiv_version: 1702.03394v2 · doi: 10.48550/arxiv.1702.03394 · pith_short_12: 7VX7LKT2WIEH · pith_short_16: 7VX7LKT2WIEH7CW7 · pith_short_8: 7VX7LKT2

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/7VX7LKT2WIEH7CW7PIZTIQZTYO \
  | 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: fd6ff5aa7ab2087f8adf7a33344333c3ad45e69eb7b2af17e2a3bd080fc7ff5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e152963d54d86d6e50b77f8f8ab7fd906ce1795c9e382766e030ce2cfb6d1990",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-02-11T08:07:31Z",
    "title_canon_sha256": "5831c76476eeba01ade1f90fd2e18ca9d2d35e52e0d65196dd9b18dcb0ce9e5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.03394",
    "kind": "arxiv",
    "version": 2
  }
}