Pith Number

pith:XV2CQOYT

pith:2018:XV2CQOYT7U2UKIIQDA6SAVOZFZ

not attested not anchored not stored refs pending

The Gemini Planet Imager: Looking back over five years and forward to the future

Andrew Norton, Bruce Macintosh, Christian Marois, Dmitry Savransky, Eric Nielsen, Jason Wang, J.B. Ruffio, Jean-Pierre Veran, Jeffrey K. Chilcote, J.R. Graham, Lisa Poyneer, Robert De Rosa, Vanessa P. Bailey

arxiv:1807.07146 v1 · 2018-07-18 · 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{XV2CQOYT7U2UKIIQDA6SAVOZFZ}

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	2026-05-18T00:10:21.141175Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd74283b13fd35452110183d2055d92e7cbf9a4370136f7a558b3d9c2a4a9d36

Aliases

arxiv: 1807.07146 · arxiv_version: 1807.07146v1 · doi: 10.48550/arxiv.1807.07146 · pith_short_12: XV2CQOYT7U2U · pith_short_16: XV2CQOYT7U2UKIIQ · pith_short_8: XV2CQOYT

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/XV2CQOYT7U2UKIIQDA6SAVOZFZ \
  | 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: bd74283b13fd35452110183d2055d92e7cbf9a4370136f7a558b3d9c2a4a9d36

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b9d63c9c614e27cba52c5db327133b541e908546779e43eed788a6f19c5facb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-07-18T21:05:10Z",
    "title_canon_sha256": "3d75e6b502d737623b65f250f7bac2b910fa6909d3501a07f439db34a49204da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.07146",
    "kind": "arxiv",
    "version": 1
  }
}