Pith Number

pith:C3ZAPQKD

pith:2003:C3ZAPQKDKSTEQRKUEK3HN2PPG4

not attested not anchored not stored refs pending

Nanoengineered Astronomical Optics

A.M. Ritcey, E.F. Borra, H. Yockell-Lelievre, J. Gingras, L. da Silva, M. Dallaire, P. Laird, R. Bergamasco

arxiv:astro-ph/0304104 v1 · 2003-04-05 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C3ZAPQKDKSTEQRKUEK3HN2PPG4}

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	2026-07-04T16:36:48.325575Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

16f207c14354a648455422b676e9ef370d71b06353087a76deccbb211fe428f1

Aliases

arxiv: astro-ph/0304104 · arxiv_version: astro-ph/0304104v1 · doi: 10.48550/arxiv.astro-ph/0304104 · pith_short_12: C3ZAPQKDKSTE · pith_short_16: C3ZAPQKDKSTEQRKU · pith_short_8: C3ZAPQKD

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/C3ZAPQKDKSTEQRKUEK3HN2PPG4 \
  | 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: 16f207c14354a648455422b676e9ef370d71b06353087a76deccbb211fe428f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6707b6e8f87cd83d57b467ba12a02db949c742dfbf8bde55fb2496a75a8b194c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-04-05T23:01:41Z",
    "title_canon_sha256": "0b25721476d9b8ad8382d110d944d1fa553a79bce2d3c78a6112eb6cc62c8022"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0304104",
    "kind": "arxiv",
    "version": 1
  }
}