Pith Number

pith:7WH4B5RS

pith:2014:7WH4B5RS3A3YLNA7O7NN536E7A

not attested not anchored not stored refs pending

Water vapor in the spectrum of the extrasolar planet HD 189733b: 2. The eclipse

Drake Deming, Nicolas Crouzet, Nikku Madhusudhan, Peter R. McCullough

arxiv:1409.4000 v2 · 2014-09-13 · 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{7WH4B5RS3A3YLNA7O7NN536E7A}

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	2026-05-18T01:42:02.801125Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd8fc0f632d83785b41f77dadeefc4f80aadd0938b546be492dfcdbc8cbf161a

Aliases

arxiv: 1409.4000 · arxiv_version: 1409.4000v2 · doi: 10.48550/arxiv.1409.4000 · pith_short_12: 7WH4B5RS3A3Y · pith_short_16: 7WH4B5RS3A3YLNA7 · pith_short_8: 7WH4B5RS

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/7WH4B5RS3A3YLNA7O7NN536E7A \
  | 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: fd8fc0f632d83785b41f77dadeefc4f80aadd0938b546be492dfcdbc8cbf161a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a6a9a8a75cd8b7c5c770f2e3bc449d57576450e79cd0c35242fdfd7a1f6e5d2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2014-09-13T23:29:55Z",
    "title_canon_sha256": "75672e6b87b4f319a2c1789e743116eb43a1bb28d6c8cd9cf5188293c82a15d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.4000",
    "kind": "arxiv",
    "version": 2
  }
}