Pith Number

pith:4LWP3ROM

pith:2009:4LWP3ROMXJ6PU4N5SBS5WOQR2B

not attested not anchored not stored refs pending

A Multi-Chamber System for Analyzing the Outgassing, Deposition, and Associated Optical Degradation Properties of Materials in a Vacuum

C. Chang, J. Singal, P. Czodrowski, P. Kim, R. Schindler

arxiv:0910.4198 v2 · 2009-10-21 · physics.ins-det · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4LWP3ROMXJ6PU4N5SBS5WOQR2B}

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	2026-05-18T02:24:46.673712Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2ecfdc5ccba7cfa71bd9065db3a11d078e19d73dc44eca8e103c28ff97800db

Aliases

arxiv: 0910.4198 · arxiv_version: 0910.4198v2 · doi: 10.48550/arxiv.0910.4198 · pith_short_12: 4LWP3ROMXJ6P · pith_short_16: 4LWP3ROMXJ6PU4N5 · pith_short_8: 4LWP3ROM

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/4LWP3ROMXJ6PU4N5SBS5WOQR2B \
  | 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: e2ecfdc5ccba7cfa71bd9065db3a11d078e19d73dc44eca8e103c28ff97800db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e7b3a43abedf8b1af0f4dfd5cecbcba77bcf6a9ec899aa7d08a7a50490ca33c",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2009-10-21T23:50:54Z",
    "title_canon_sha256": "17ce36b41415cee4eb54ca68618e2bc8e8793824a705c150ad4d7ffe136badd2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.4198",
    "kind": "arxiv",
    "version": 2
  }
}