Pith Number

pith:FFLPYR6Y

pith:2018:FFLPYR6Y2IL3OATTJJVUJI26GV

not attested not anchored not stored refs pending

Ground-based optical transmission spectroscopy of the small, rocky exoplanet GJ 1132b

David Charbonneau, Eliza M.-R. Kempton, Hannah Diamond-Lowe, Zachory Berta-Thompson

arxiv:1805.07328 v1 · 2018-05-18 · 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{FFLPYR6Y2IL3OATTJJVUJI26GV}

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	2026-05-18T00:10:37.480828Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2956fc47d8d217b702734a6b44a35e3569585b4a62210e37245523490034e35d

Aliases

arxiv: 1805.07328 · arxiv_version: 1805.07328v1 · doi: 10.48550/arxiv.1805.07328 · pith_short_12: FFLPYR6Y2IL3 · pith_short_16: FFLPYR6Y2IL3OATT · pith_short_8: FFLPYR6Y

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/FFLPYR6Y2IL3OATTJJVUJI26GV \
  | 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: 2956fc47d8d217b702734a6b44a35e3569585b4a62210e37245523490034e35d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c22feeb5034d241452d2b8012631aa178bc9a7f5c9ac4ff89ca78d7afe58d81",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-05-18T17:08:09Z",
    "title_canon_sha256": "c7b815f904a5027accbfc7bf0d9cdd9e931535adb45bbf9bfa20a471d85f0188"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.07328",
    "kind": "arxiv",
    "version": 1
  }
}