Pith Number

pith:LJI5Y2HP

pith:1996:LJI5Y2HPKCJUGUEQYE3KONMK27

not attested not anchored not stored refs pending

The future of HST and the planning for a Next Generation Space Telescope

R A E Fosbury

arxiv:astro-ph/9609004 v1 · 1996-08-30 · 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{LJI5Y2HPKCJUGUEQYE3KONMK27}

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	2026-07-04T14:14:53.913204Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a51dc68ef5093435090c136a7358ad7c362fddc6576e5ce17f64abc76ccf70a

Aliases

arxiv: astro-ph/9609004 · arxiv_version: astro-ph/9609004v1 · doi: 10.48550/arxiv.astro-ph/9609004 · pith_short_12: LJI5Y2HPKCJU · pith_short_16: LJI5Y2HPKCJUGUEQ · pith_short_8: LJI5Y2HP

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/LJI5Y2HPKCJUGUEQYE3KONMK27 \
  | 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: 5a51dc68ef5093435090c136a7358ad7c362fddc6576e5ce17f64abc76ccf70a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2455ba145309fb1b9ca5c37c3cfb576a520c57fbfb8537043b9449bd06234b2d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1996-08-30T12:01:46Z",
    "title_canon_sha256": "90ad4d8b413eaee895d6c9c084fa8735cf86c2b5f7c6fad859c770691348eeea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9609004",
    "kind": "arxiv",
    "version": 1
  }
}