Pith Number

pith:W4WYVTG3

pith:2018:W4WYVTG3CHKCV47255BK677U3X

not attested not anchored not stored refs pending

ACCESS: Ground-based Optical Transmission Spectroscopy of the Hot Jupiter WASP-4b

Alex Bixel, Andr\'es Jord\'an, Benjamin V. Rackham, Chima McGruder, D\'aniel Apai, David J. Osip, Ian Weaver, Mercedes L\'opez-Morales, N\'estor Espinoza

arxiv:1812.07177 v1 · 2018-12-18 · 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{W4WYVTG3CHKCV47255BK677U3X}

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	2026-05-17T23:55:18.766611Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b72d8accdb11d42af3faef42af7ff4ddca09d1e22010e2e8b23ce837a4885160

Aliases

arxiv: 1812.07177 · arxiv_version: 1812.07177v1 · doi: 10.48550/arxiv.1812.07177 · pith_short_12: W4WYVTG3CHKC · pith_short_16: W4WYVTG3CHKCV472 · pith_short_8: W4WYVTG3

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/W4WYVTG3CHKCV47255BK677U3X \
  | 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: b72d8accdb11d42af3faef42af7ff4ddca09d1e22010e2e8b23ce837a4885160

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4aaec35c37c7ae73ba7f0b9e273f76dcd9beb536777e7c1de52b5b9229c2c32a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-12-18T05:33:21Z",
    "title_canon_sha256": "10f66a117e1203004c00e755f20fc89c58d772acd65ffc7dc1501434f2d51888"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.07177",
    "kind": "arxiv",
    "version": 1
  }
}