Pith Number

pith:W4YGQDFR

pith:2013:W4YGQDFRLBJD5L7LS6RHE7SZC7

not attested not anchored not stored refs pending

Novel linear algebraic theory and one-hundred-million-atom electronic structure calculation on the K computer

Keita Yamazaki, Takeo Hoshi, Yohei Akiyama

arxiv:1307.3218 v1 · 2013-07-11 · cond-mat.mtrl-sci · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W4YGQDFRLBJD5L7LS6RHE7SZC7}

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	2026-05-18T03:18:40.806001Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b730680cb158523eafeb97a2727e5917e1e5c77eef8a03d9d9a4d1277154cb6f

Aliases

arxiv: 1307.3218 · arxiv_version: 1307.3218v1 · doi: 10.48550/arxiv.1307.3218 · pith_short_12: W4YGQDFRLBJD · pith_short_16: W4YGQDFRLBJD5L7L · pith_short_8: W4YGQDFR

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/W4YGQDFRLBJD5L7LS6RHE7SZC7 \
  | 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: b730680cb158523eafeb97a2727e5917e1e5c77eef8a03d9d9a4d1277154cb6f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d1a002b327538833d3e0ac4ea314939ac89f92cb8803592710da08cd5227444",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2013-07-11T19:05:40Z",
    "title_canon_sha256": "b08a9a69a12f38f97c8ef1c1f8adebdf6dd96c74405714d95afae498d0d14f20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.3218",
    "kind": "arxiv",
    "version": 1
  }
}