Pith Number

pith:QUKLJMV2

pith:2014:QUKLJMV2YPXGBA6LSLDKFDHII3

not attested not anchored not stored refs pending

Gradient Support Projection Algorithm for Affine Feasibility Problem with Sparsity and Nonnegativity

Lili Pan, Naihua Xiu, Shenglong Zhou

arxiv:1406.7178 v1 · 2014-06-27 · 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{QUKLJMV2YPXGBA6LSLDKFDHII3}

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	2026-05-18T02:48:53.901097Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8514b4b2bac3ee6083cb92c6a28ce846ec395b75294925cf5b8c750fb6b8cfe2

Aliases

arxiv: 1406.7178 · arxiv_version: 1406.7178v1 · doi: 10.48550/arxiv.1406.7178 · pith_short_12: QUKLJMV2YPXG · pith_short_16: QUKLJMV2YPXGBA6L · pith_short_8: QUKLJMV2

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/QUKLJMV2YPXGBA6LSLDKFDHII3 \
  | 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: 8514b4b2bac3ee6083cb92c6a28ce846ec395b75294925cf5b8c750fb6b8cfe2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "babb60fef88445e473173c0760432c523dc11431906bdb792c7eafcbb7917a08",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2014-06-27T13:45:28Z",
    "title_canon_sha256": "39dfd6f06f0a160bce8f6dd669c8481bfdb5e44d95673b4b62288efb3be03378"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.7178",
    "kind": "arxiv",
    "version": 1
  }
}