Pith Number

pith:EYS3ZQBT

pith:2013:EYS3ZQBT7NGHVH7272D6KW6YXS

not attested not anchored not stored refs pending

Transformations of Matrix Structures Work Again

Victor Y. Pan

arxiv:1303.0353 v1 · 2013-03-02 · 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{EYS3ZQBT7NGHVH7272D6KW6YXS}

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	2026-05-18T03:31:56.375082Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2625bcc033fb4c7a9ffafe87e55bd8bc87347471796677bbcbd590ce9db27175

Aliases

arxiv: 1303.0353 · arxiv_version: 1303.0353v1 · doi: 10.48550/arxiv.1303.0353 · pith_short_12: EYS3ZQBT7NGH · pith_short_16: EYS3ZQBT7NGHVH72 · pith_short_8: EYS3ZQBT

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/EYS3ZQBT7NGHVH7272D6KW6YXS \
  | 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: 2625bcc033fb4c7a9ffafe87e55bd8bc87347471796677bbcbd590ce9db27175

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82c870a2252e5ae081c878489ef51f9a83d2b4d2ca42fa576c9b585b3e53f75d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-03-02T04:46:03Z",
    "title_canon_sha256": "07fb6aad443bb1ae7f118d09e70fe4a419b8168e1380d3f254f5c8944e29cb9c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.0353",
    "kind": "arxiv",
    "version": 1
  }
}