Pith Number

pith:6P3LAIFP

pith:2016:6P3LAIFPJG7WQHQ4BUJZXPSMG3

not attested not anchored not stored refs pending

Gaussian elimination corrects pivoting mistakes

Alex Townsend

arxiv:1602.06602 v1 · 2016-02-21 · 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{6P3LAIFPJG7WQHQ4BUJZXPSMG3}

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	2026-05-18T01:20:13.568160Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3f6b020af49bf681e1c0d139bbe4c36cd00505a4361442bf332ffdc677c49bf

Aliases

arxiv: 1602.06602 · arxiv_version: 1602.06602v1 · doi: 10.48550/arxiv.1602.06602 · pith_short_12: 6P3LAIFPJG7W · pith_short_16: 6P3LAIFPJG7WQHQ4 · pith_short_8: 6P3LAIFP

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/6P3LAIFPJG7WQHQ4BUJZXPSMG3 \
  | 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: f3f6b020af49bf681e1c0d139bbe4c36cd00505a4361442bf332ffdc677c49bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "605f054d11616aa0451d8e9232332956b51f9f5fad90e742fa21461cebaa1b1a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-02-21T23:31:40Z",
    "title_canon_sha256": "de0ce65fcf3a160752f0ea15ef41069ede1b9c40fc583231a5b04d67f81117c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.06602",
    "kind": "arxiv",
    "version": 1
  }
}