Pith Number

pith:Q3TBVP3J

pith:2019:Q3TBVP3JGIEG3COACALXH7JFFY

not attested not anchored not stored refs pending

Geometrical and physical optics analysis for mm-wavelength refractor telescopes designed to map the cosmic microwave background

Jon E. Gudmundsson

arxiv:1911.13153 v1 · 2019-11-29 · astro-ph.IM · astro-ph.CO · 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{Q3TBVP3JGIEG3COACALXH7JFFY}

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	2026-07-05T00:56:39.413277Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86e61abf6932086d89c0101773fd252e1bbd4ca50560f6b8528ecc13369bf50f

Aliases

arxiv: 1911.13153 · arxiv_version: 1911.13153v1 · doi: 10.48550/arxiv.1911.13153 · pith_short_12: Q3TBVP3JGIEG · pith_short_16: Q3TBVP3JGIEG3COA · pith_short_8: Q3TBVP3J

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/Q3TBVP3JGIEG3COACALXH7JFFY \
  | 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: 86e61abf6932086d89c0101773fd252e1bbd4ca50560f6b8528ecc13369bf50f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41b4abd8a4d49ab880f7c56340f5c12fc8b4817099b0bf0fb2deb1f531fe0eea",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-11-29T15:35:30Z",
    "title_canon_sha256": "703109110da89cf3e27753fd9d83be6c1554e338e3502f16d38ac57414c9c60e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.13153",
    "kind": "arxiv",
    "version": 1
  }
}