Pith Number

pith:QYG2YEW2

pith:2018:QYG2YEW22X6QUALZNAZ33QTHKF

not attested not anchored not stored refs pending

Aerogel scattering filters for cosmic microwave background observations

Charles L. Bennett, Edward J. Wollack, Haiquan Guo, Karwan Rostem, Kyle Helson, Lance Corbett, Mary Ann B. Meador, Thomas Essinger-Hileman, Tobias Marriage

arxiv:1807.04194 v2 · 2018-07-11 · 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{QYG2YEW22X6QUALZNAZ33QTHKF}

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	2026-07-05T03:28:08.587686Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

860dac12dad5fd0a01796833bdc2675177df5ffe8a1677497fb6555709a2f7ab

Aliases

arxiv: 1807.04194 · arxiv_version: 1807.04194v2 · doi: 10.48550/arxiv.1807.04194 · pith_short_12: QYG2YEW22X6Q · pith_short_16: QYG2YEW22X6QUALZ · pith_short_8: QYG2YEW2

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/QYG2YEW22X6QUALZNAZ33QTHKF \
  | 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: 860dac12dad5fd0a01796833bdc2675177df5ffe8a1677497fb6555709a2f7ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34d6fda4d68511ba83c01b854e5f4496ae27448dfe50ae125ec467783e97579f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-07-11T15:28:27Z",
    "title_canon_sha256": "74dab9e4f70645003cec3a27a57a1ab75b41f7b04a4c5d457afea7c2fd464b74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.04194",
    "kind": "arxiv",
    "version": 2
  }
}