Pith Number

pith:PWFR7WGD

pith:2012:PWFR7WGDWCFIPUVFG45Q5G3UKW

not attested not anchored not stored refs pending

Infrared dielectric properties of low-stress silicon nitride

Brendan McAndrew, Edward J. Wollack, Giuseppe Cataldo, Hsiao-mei Cho, James A. Beall, Michael D. Niemack

arxiv:1209.2987 v1 · 2012-09-13 · astro-ph.IM · cond-mat.mtrl-sci · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PWFR7WGDWCFIPUVFG45Q5G3UKW}

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	2026-05-18T03:44:05.101143Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d8b1fd8c3b08a87d2a5373b0e9b74559c4264324ab252a3a0532357ee9197e0

Aliases

arxiv: 1209.2987 · arxiv_version: 1209.2987v1 · doi: 10.48550/arxiv.1209.2987 · pith_short_12: PWFR7WGDWCFI · pith_short_16: PWFR7WGDWCFIPUVF · pith_short_8: PWFR7WGD

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/PWFR7WGDWCFIPUVFG45Q5G3UKW \
  | 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: 7d8b1fd8c3b08a87d2a5373b0e9b74559c4264324ab252a3a0532357ee9197e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd1a0f71cd4d34f3e6821b3fee152ea72a63437c8f05d2fa3db3bbe496765bcb",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci",
      "physics.optics"
    ],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-09-13T18:35:44Z",
    "title_canon_sha256": "415689f344169260c6dd2d176eeb86afc7f65e622fe11ddce24d732d75df7179"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.2987",
    "kind": "arxiv",
    "version": 1
  }
}