Pith Number

pith:34H5G7WZ

pith:2015:34H5G7WZJRFFHJYZOVTYZ7MADA

not attested not anchored not stored refs pending

A cyclic block coordinate descent method with generalized gradient projections

Marco Prato, Silvia Bonettini, Simone Rebegoldi

arxiv:1502.06737 v1 · 2015-02-24 · math.NA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{34H5G7WZJRFFHJYZOVTYZ7MADA}

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	2026-05-18T01:15:00.452217Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df0fd37ed94c4a53a71975678cfd8018137252a513c14838a46bb63c70e19a5c

Aliases

arxiv: 1502.06737 · arxiv_version: 1502.06737v1 · doi: 10.48550/arxiv.1502.06737 · pith_short_12: 34H5G7WZJRFF · pith_short_16: 34H5G7WZJRFFHJYZ · pith_short_8: 34H5G7WZ

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/34H5G7WZJRFFHJYZOVTYZ7MADA \
  | 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: df0fd37ed94c4a53a71975678cfd8018137252a513c14838a46bb63c70e19a5c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8cd4ae869f56191e94a49f4cc42c8e98b16d57dd5ecb355d9ed8de276834613",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-02-24T09:58:31Z",
    "title_canon_sha256": "3d22f779056402d51c1a1d3c4af7a153ac3a738f848822e7983860ab9c55b652"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.06737",
    "kind": "arxiv",
    "version": 1
  }
}