Pith Number

pith:WATR4FH5

pith:2016:WATR4FH52Y3A4A62F2HPPUFCCT

not attested not anchored not stored refs pending

An EM based Iterative Method for Solving Large Sparse Linear Systems

Minwoo Chae, Stephen G. Walker

arxiv:1609.00670 v3 · 2016-09-02 · 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{WATR4FH52Y3A4A62F2HPPUFCCT}

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	2026-05-18T00:09:05.918819Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0271e14fdd6360e03da2e8ef7d0a214e288a9460e8cc24bd9e6f087ce4b729f

Aliases

arxiv: 1609.00670 · arxiv_version: 1609.00670v3 · doi: 10.48550/arxiv.1609.00670 · pith_short_12: WATR4FH52Y3A · pith_short_16: WATR4FH52Y3A4A62 · pith_short_8: WATR4FH5

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/WATR4FH52Y3A4A62F2HPPUFCCT \
  | 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: b0271e14fdd6360e03da2e8ef7d0a214e288a9460e8cc24bd9e6f087ce4b729f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1242a30994c53efabf9e928b2deefd9a5bd95941de53336e9e50f3d50cad2538",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-09-02T17:20:08Z",
    "title_canon_sha256": "ae75e5f3bb07550caf0e2357ceedad40f65cf619380e3f048e1b1ab3d9cf8070"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.00670",
    "kind": "arxiv",
    "version": 3
  }
}