Pith Number

pith:NSNJC4PQ

pith:2019:NSNJC4PQAWOLJDFOJSAL2CLNEL

not attested not anchored not stored refs pending

Sampled Limited Memory Methods for Massive Linear Inverse Problems

J. Tanner Slagel, Julianne Chung, Luis Tenorio, Matthias Chung

arxiv:1912.07962 v1 · 2019-12-17 · math.NA · cs.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{NSNJC4PQAWOLJDFOJSAL2CLNEL}

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	2026-07-05T01:13:01.397225Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c9a9171f0059cb48cae4c80bd096d22fd4aaabc92eebba2590b3efd2d96b9fc

Aliases

arxiv: 1912.07962 · arxiv_version: 1912.07962v1 · doi: 10.48550/arxiv.1912.07962 · pith_short_12: NSNJC4PQAWOL · pith_short_16: NSNJC4PQAWOLJDFO · pith_short_8: NSNJC4PQ

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/NSNJC4PQAWOLJDFOJSAL2CLNEL \
  | 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: 6c9a9171f0059cb48cae4c80bd096d22fd4aaabc92eebba2590b3efd2d96b9fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c0880acf41b4583f58dba2477b1ff0a19095c1a069769e70fa3539a61219f76",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-12-17T12:19:50Z",
    "title_canon_sha256": "6cb854b4ae5f56bc7f109625a900ad338a6afcbf3b49e36dfddefdd4706bb59f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.07962",
    "kind": "arxiv",
    "version": 1
  }
}