Pith Number

pith:KCVJQFJA

pith:2012:KCVJQFJATV6XAHHHNEOHU5OJ3S

not attested not anchored not stored refs pending

Space Astronomy for the mid-21st Century: Robotically Maintained Space Telescopes

N. Schartel

arxiv:1202.4884 v1 · 2012-02-22 · 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{KCVJQFJATV6XAHHHNEOHU5OJ3S}

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	2026-05-18T01:58:22.485218Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

50aa9815209d7d701ce7691c7a75c9dc85d2e0fef8e2fb1b82f0628425d6bc4b

Aliases

arxiv: 1202.4884 · arxiv_version: 1202.4884v1 · doi: 10.48550/arxiv.1202.4884 · pith_short_12: KCVJQFJATV6X · pith_short_16: KCVJQFJATV6XAHHH · pith_short_8: KCVJQFJA

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/KCVJQFJATV6XAHHHNEOHU5OJ3S \
  | 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: 50aa9815209d7d701ce7691c7a75c9dc85d2e0fef8e2fb1b82f0628425d6bc4b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ae9b2b5ee004f13bf16ed5429c70bf9bf26259e2dc8abc7faa0087c7e301b0f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-02-22T11:21:39Z",
    "title_canon_sha256": "f6148816a8dbad79a1279e8f130c638f6960f2c90fd31634a6d6058e1c37901b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.4884",
    "kind": "arxiv",
    "version": 1
  }
}