Pith Number

pith:HZ7YKSBD

pith:2012:HZ7YKSBDNSE5SIX3DQDZ6DIH6U

not attested not anchored not stored refs pending

Phonon-assisted optical absorption in silicon from first principles

Chris G. Van de Walle, Emmanouil Kioupakis, Jesse Noffsinger, Marvin L. Cohen, Steven G. Louie

arxiv:1202.3454 v1 · 2012-02-15 · 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{HZ7YKSBDNSE5SIX3DQDZ6DIH6U}

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	2026-05-18T03:57:24.410981Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e7f8548236c89d922fb1c079f0d07f502f74a7525b000ec2cee93bd167d46a3

Aliases

arxiv: 1202.3454 · arxiv_version: 1202.3454v1 · doi: 10.48550/arxiv.1202.3454 · pith_short_12: HZ7YKSBDNSE5 · pith_short_16: HZ7YKSBDNSE5SIX3 · pith_short_8: HZ7YKSBD

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/HZ7YKSBDNSE5SIX3DQDZ6DIH6U \
  | 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: 3e7f8548236c89d922fb1c079f0d07f502f74a7525b000ec2cee93bd167d46a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43e9a7d0220c37ed3a1346bc2e79bb47b9e9be009b9840631802fedf4db728fe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2012-02-15T21:47:24Z",
    "title_canon_sha256": "2a377f314e8d3a15fb8e11d2687fe48f12a31bc9def8ea5ce811573778ade6de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.3454",
    "kind": "arxiv",
    "version": 1
  }
}