Pith Number

pith:4IV4HCWK

pith:2018:4IV4HCWKQHU4ZWUSB2HGU4IHYI

not attested not anchored not stored refs pending

Obliquity Tides May Drive WASP-12b's Rapid Orbital Decay

Gregory Laughlin, Sarah Millholland

arxiv:1812.01624 v2 · 2018-12-04 · 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{4IV4HCWKQHU4ZWUSB2HGU4IHYI}

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	2026-05-17T23:58:01.430680Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e22bc38aca81e9ccda920e8e6a7107c21569b6182d85f0625071ece2d8548639

Aliases

arxiv: 1812.01624 · arxiv_version: 1812.01624v2 · doi: 10.48550/arxiv.1812.01624 · pith_short_12: 4IV4HCWKQHU4 · pith_short_16: 4IV4HCWKQHU4ZWUS · pith_short_8: 4IV4HCWK

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/4IV4HCWKQHU4ZWUSB2HGU4IHYI \
  | 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: e22bc38aca81e9ccda920e8e6a7107c21569b6182d85f0625071ece2d8548639

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f8c290246dc638c5e9fefb9bcec1bc0ce9c311d2bf15122169ed3b993752795",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-12-04T19:00:59Z",
    "title_canon_sha256": "923c95758b4ba5830b62ee93f5151e6c70d50dd5946f120adaacdbd30b7da95d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.01624",
    "kind": "arxiv",
    "version": 2
  }
}