Pith Number

pith:3B4ZCSVE

pith:2012:3B4ZCSVEQMEDLYNX2UO3WIKUWT

not attested not anchored not stored refs pending

The prevalence of dust on the exoplanet HD 189733b from Hubble and Spitzer observations

(2) Oxford, 3), (3) ESO, (4) Tennessee State), D. K. Sing (1), F. Pont (1), G.Henry (4), N. Husnoo (1) ((1) Exeter, N. P. Gibson (2, S. Aigrain (2)

arxiv:1210.4163 v2 · 2012-10-15 · 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{3B4ZCSVEQMEDLYNX2UO3WIKUWT}

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	2026-05-18T01:53:54.902310Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d879914aa4830835e1b7d51dbb2154b4de8da4a849795910eb42f841993796d7

Aliases

arxiv: 1210.4163 · arxiv_version: 1210.4163v2 · doi: 10.48550/arxiv.1210.4163 · pith_short_12: 3B4ZCSVEQMED · pith_short_16: 3B4ZCSVEQMEDLYNX · pith_short_8: 3B4ZCSVE

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/3B4ZCSVEQMEDLYNX2UO3WIKUWT \
  | 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: d879914aa4830835e1b7d51dbb2154b4de8da4a849795910eb42f841993796d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7283eaaf95deb1ff7c731c7529f8c0edb57bec66aa7755965eddc5e75a823acd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2012-10-15T20:00:01Z",
    "title_canon_sha256": "40070394b618f3e7d449e2d4776cc203704346ae526e10b0fff720b4a7149593"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.4163",
    "kind": "arxiv",
    "version": 2
  }
}