Pith Number

pith:NCJCBAU4

pith:2014:NCJCBAU4BBBXH4B7QMFBLJDT3A

not attested not anchored not stored refs pending

Clouds on the hot Jupiter HD189733b: constraints from the reflection spectrum

Jae-Min Lee, Joanna K. Barstow, Leigh N. Fletcher, Neale P. Gibson, Patrick G. J. Irwin, Suzanne Aigrain, Till Hackler

arxiv:1403.6664 v1 · 2014-03-26 · 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{NCJCBAU4BBBXH4B7QMFBLJDT3A}

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	2026-05-18T01:43:50.919661Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

689220829c084373f03f830a15a473d814769b7cad86e2533f702edb695f734f

Aliases

arxiv: 1403.6664 · arxiv_version: 1403.6664v1 · doi: 10.48550/arxiv.1403.6664 · pith_short_12: NCJCBAU4BBBX · pith_short_16: NCJCBAU4BBBXH4B7 · pith_short_8: NCJCBAU4

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/NCJCBAU4BBBXH4B7QMFBLJDT3A \
  | 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: 689220829c084373f03f830a15a473d814769b7cad86e2533f702edb695f734f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40f027c8fd27c9e0fd9ca6b762373b1b45ab413259a3aaf78f7318ca807ddee3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2014-03-26T13:31:33Z",
    "title_canon_sha256": "3988592e63d9ed407264367fb833e8c049123e7e69b7c1fba48a2b4dd9e13f60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.6664",
    "kind": "arxiv",
    "version": 1
  }
}