Pith Number

pith:6W63P72L

pith:2015:6W63P72LN7ZNUC6IRVVRIKBIUT

not attested not anchored not stored refs pending

Uniform Quadratic Optimization and Extensions

Shu Wang, Yong Xia

arxiv:1508.01000 v1 · 2015-08-05 · 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{6W63P72LN7ZNUC6IRVVRIKBIUT}

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	2026-05-18T01:35:44.310685Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5bdb7ff4b6ff2da0bc88d6b142828a4dbe8c65d74e8be406b9a290b4c10a902

Aliases

arxiv: 1508.01000 · arxiv_version: 1508.01000v1 · doi: 10.48550/arxiv.1508.01000 · pith_short_12: 6W63P72LN7ZN · pith_short_16: 6W63P72LN7ZNUC6I · pith_short_8: 6W63P72L

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/6W63P72LN7ZNUC6IRVVRIKBIUT \
  | 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: f5bdb7ff4b6ff2da0bc88d6b142828a4dbe8c65d74e8be406b9a290b4c10a902

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57b3684c521c4c2570f0dfd67ea845cffe8ab2126b23ad975a0593d7b3e74bf5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2015-08-05T08:26:02Z",
    "title_canon_sha256": "7f6e2da834cdf67329264ee0403ced130f86b23b575d945daad654cf8b99e194"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.01000",
    "kind": "arxiv",
    "version": 1
  }
}