Pith Number

pith:FBAZAER6

pith:2017:FBAZAER6I7VKPC7OKCWMFIWUEK

not attested not anchored not stored refs pending

A wide field-of-view crossed Dragone optical system using the anamorphic aspherical surfaces

Hajime Sugai, Hiroaki Imada, Masashi Hazumi, Nobuhiko Katayama, Shingo Kashima, Tomotake Matsumura, Yutaro Sekimoto

arxiv:1712.05139 v2 · 2017-12-14 · astro-ph.IM · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FBAZAER6I7VKPC7OKCWMFIWUEK}

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	2026-05-18T00:14:06.484387Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

284190123e47eaa78bee50acc2a2d422960ea481d3a6dc242382f058b9b22c0a

Aliases

arxiv: 1712.05139 · arxiv_version: 1712.05139v2 · doi: 10.48550/arxiv.1712.05139 · pith_short_12: FBAZAER6I7VK · pith_short_16: FBAZAER6I7VKPC7O · pith_short_8: FBAZAER6

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/FBAZAER6I7VKPC7OKCWMFIWUEK \
  | 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: 284190123e47eaa78bee50acc2a2d422960ea481d3a6dc242382f058b9b22c0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8b28dd67a069fc1505504b2c71777a6bd2d79bcdec490c106abf12ba2085346",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2017-12-14T09:40:43Z",
    "title_canon_sha256": "5a2c32dfaa66069eacd23692723c467f8e09aee5a842d8319fee3c61c314eb42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.05139",
    "kind": "arxiv",
    "version": 2
  }
}