Pith Number

pith:EUQFQN7V

pith:2017:EUQFQN7VWWXECQGEWXEN4L7XVH

not attested not anchored not stored refs pending

An extension of the Polyak convexity principle with application to nonconvex optimization

Amos Uderzo

arxiv:1710.03625 v2 · 2017-10-10 · 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{EUQFQN7VWWXECQGEWXEN4L7XVH}

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	2026-05-17T23:44:10.386879Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25205837f5b5ae4140c4b5c8de2ff7a9ca29877f7ae528ef2ab71a16fc57b81a

Aliases

arxiv: 1710.03625 · arxiv_version: 1710.03625v2 · doi: 10.48550/arxiv.1710.03625 · pith_short_12: EUQFQN7VWWXE · pith_short_16: EUQFQN7VWWXECQGE · pith_short_8: EUQFQN7V

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/EUQFQN7VWWXECQGEWXEN4L7XVH \
  | 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: 25205837f5b5ae4140c4b5c8de2ff7a9ca29877f7ae528ef2ab71a16fc57b81a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b270d487752994f48c3cdc5c97928e0217f047a4102522d23ea78711feb05c8b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-10-10T14:36:39Z",
    "title_canon_sha256": "d1dacb093f59b37f57de1553bce19e3d07a013764b5d1642f35402b009ebb3cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.03625",
    "kind": "arxiv",
    "version": 2
  }
}