Pith Number

pith:EGPO4N2M

pith:2012:EGPO4N2M4ZXCKLOLUUUILFHAMC

not attested not anchored not stored refs pending

Transmission spectroscopy of exoplanet XO-2b observed with HST NICMOS

Christopher J. Burke, Douglas Long, Nicolas Crouzet, Peter R. McCullough

arxiv:1210.5275 v1 · 2012-10-18 · 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{EGPO4N2M4ZXCKLOLUUUILFHAMC}

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	2026-05-18T01:53:46.235546Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

219eee374ce66e252dcba5288594e060bf1d2cbffa4f2c04b476d087a508974f

Aliases

arxiv: 1210.5275 · arxiv_version: 1210.5275v1 · doi: 10.48550/arxiv.1210.5275 · pith_short_12: EGPO4N2M4ZXC · pith_short_16: EGPO4N2M4ZXCKLOL · pith_short_8: EGPO4N2M

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/EGPO4N2M4ZXCKLOLUUUILFHAMC \
  | 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: 219eee374ce66e252dcba5288594e060bf1d2cbffa4f2c04b476d087a508974f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "20ec2c10d74271c439261fefc242950693110cbbbcfccdb977e8e7cf2246d8f4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2012-10-18T22:53:18Z",
    "title_canon_sha256": "b01b09509ad323ee9ee9870e7789fea9e1cf53aec2c31b176fd4341013a88f06"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.5275",
    "kind": "arxiv",
    "version": 1
  }
}