Pith Number

pith:QY3AK4GE

pith:2019:QY3AK4GEQSOPFD5NO7HDK7QYNI

not attested not anchored not stored refs pending

Highly accurate prediction of material optical properties based on density functional theory

Hiroyuki Fujiwara, Mitsutoshi Nishiwaki

arxiv:1907.00556 v2 · 2019-07-01 · cond-mat.mtrl-sci

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QY3AK4GEQSOPFD5NO7HDK7QYNI}

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	2026-05-17T23:40:29.895456Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86360570c4849cf28fad77ce357e186a254fd181b28d7db7564bda745ae2c4fb

Aliases

arxiv: 1907.00556 · arxiv_version: 1907.00556v2 · doi: 10.48550/arxiv.1907.00556 · pith_short_12: QY3AK4GEQSOP · pith_short_16: QY3AK4GEQSOPFD5N · pith_short_8: QY3AK4GE

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/QY3AK4GEQSOPFD5NO7HDK7QYNI \
  | 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: 86360570c4849cf28fad77ce357e186a254fd181b28d7db7564bda745ae2c4fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7817ee45010c5e2e9f8046bb3c039282fa11cc657f60ca3de2f7adf0dab94ffb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2019-07-01T05:32:00Z",
    "title_canon_sha256": "7a7f091a10910548079a977a54db89ffe3668415094e6627d8d0c1b9067a01a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.00556",
    "kind": "arxiv",
    "version": 2
  }
}