Pith Number

pith:QDQ5DW3I

pith:2013:QDQ5DW3IBTP43PHLEREZ62VUB4

not attested not anchored not stored refs pending

Nonsmooth Steepest Descent Method by Proximal Subdifferentials in Hilbert Spaces

Qing Hai He, Zhou Wei

arxiv:1310.2714 v1 · 2013-10-10 · 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{QDQ5DW3IBTP43PHLEREZ62VUB4}

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	2026-05-18T02:26:31.983462Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80e1d1db680cdfcdbceb24499f6ab40f04f965a518eb460bbb16cf51e12afccf

Aliases

arxiv: 1310.2714 · arxiv_version: 1310.2714v1 · doi: 10.48550/arxiv.1310.2714 · pith_short_12: QDQ5DW3IBTP4 · pith_short_16: QDQ5DW3IBTP43PHL · pith_short_8: QDQ5DW3I

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/QDQ5DW3IBTP43PHLEREZ62VUB4 \
  | 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: 80e1d1db680cdfcdbceb24499f6ab40f04f965a518eb460bbb16cf51e12afccf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3de877b2c26bec6b0dab184037b2ff8858d483edb894a65635a0184b5e8d65b6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2013-10-10T06:33:50Z",
    "title_canon_sha256": "366768730664e5ba666e39e188d69583afbd679538fb8c809cc908b43c0ca091"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.2714",
    "kind": "arxiv",
    "version": 1
  }
}