Pith Number

pith:VHWYNFEB

pith:2015:VHWYNFEBUM5MZFK25CMROVPPE4

not attested not anchored not stored refs pending

The Alternating Descent Conditional Gradient Method for Sparse Inverse Problems

Benjamin Recht, Geoffrey Schiebinger, Nicholas Boyd

arxiv:1507.01562 v1 · 2015-07-06 · 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{VHWYNFEBUM5MZFK25CMROVPPE4}

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	2026-05-18T01:37:16.575818Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9ed869481a33acc955ae8991755ef2724b0d8c8d46a813c15ebd593b6e32a74

Aliases

arxiv: 1507.01562 · arxiv_version: 1507.01562v1 · doi: 10.48550/arxiv.1507.01562 · pith_short_12: VHWYNFEBUM5M · pith_short_16: VHWYNFEBUM5MZFK2 · pith_short_8: VHWYNFEB

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/VHWYNFEBUM5MZFK25CMROVPPE4 \
  | 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: a9ed869481a33acc955ae8991755ef2724b0d8c8d46a813c15ebd593b6e32a74

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8c94fd7832102a26cca2241e3695a924923f81911255758ec7b870bd5059725",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2015-07-06T18:51:52Z",
    "title_canon_sha256": "6e7e50ce13a82d39398582e5fcf9913500eb811acba3b9d7ce1d8f397b54a08a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.01562",
    "kind": "arxiv",
    "version": 1
  }
}