Pith Number

pith:GJ32VOO3

pith:2018:GJ32VOO3NAIHRB2WKI7WKKHSJD

not attested not anchored not stored refs pending

Key Technology Challenges for the Study of Exoplanets and the Search for Habitable Worlds

Brendan Crill, Eric Mamajek, Karl Stapelfeldt, Nick Siegler, Shawn Domagal-Goldman

arxiv:1803.04457 v1 · 2018-03-12 · astro-ph.IM · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GJ32VOO3NAIHRB2WKI7WKKHSJD}

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	2026-05-18T00:21:18.999041Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3277aab9db6810788756523f6528f248c06d9d78f2a3422d8cee51df3b7442f7

Aliases

arxiv: 1803.04457 · arxiv_version: 1803.04457v1 · doi: 10.48550/arxiv.1803.04457 · pith_short_12: GJ32VOO3NAIH · pith_short_16: GJ32VOO3NAIHRB2W · pith_short_8: GJ32VOO3

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/GJ32VOO3NAIHRB2WKI7WKKHSJD \
  | 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: 3277aab9db6810788756523f6528f248c06d9d78f2a3422d8cee51df3b7442f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e2aec95faefded2d990afd11bd5aeb5167152fc2bc9acdec0eceb8596a1145a",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-03-12T18:54:38Z",
    "title_canon_sha256": "65d994c821d34d4750a3d7f08fe813390d218b7856e66a75a04efb98fa577b5f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.04457",
    "kind": "arxiv",
    "version": 1
  }
}