Pith Number

pith:EQ4EYDFE

pith:2019:EQ4EYDFEWV3PMGLPGB7IJHVKGA

not attested not anchored not stored refs pending

Gradient projection and conditional gradient methods for constrained nonconvex minimization

Andrey Tremba, Boris Polyak, Maxim Balashov

arxiv:1906.11580 v1 · 2019-06-27 · 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{EQ4EYDFEWV3PMGLPGB7IJHVKGA}

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	2026-05-17T23:42:04.400921Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24384c0ca4b576f6196f307e849eaa3007210ce6b7cc7170d7ca586dd6424c7d

Aliases

arxiv: 1906.11580 · arxiv_version: 1906.11580v1 · doi: 10.48550/arxiv.1906.11580 · pith_short_12: EQ4EYDFEWV3P · pith_short_16: EQ4EYDFEWV3PMGLP · pith_short_8: EQ4EYDFE

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/EQ4EYDFEWV3PMGLPGB7IJHVKGA \
  | 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: 24384c0ca4b576f6196f307e849eaa3007210ce6b7cc7170d7ca586dd6424c7d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a8d87306a62b0c872f30e6b6bc22a38591267c6e44ef1423a07347d4988d119",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-06-27T12:09:58Z",
    "title_canon_sha256": "7094e2b52a8c4aa9b6b121d311e72164903bb07e846f835c037fccfcf78ca90f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.11580",
    "kind": "arxiv",
    "version": 1
  }
}