Pith Number

pith:477MQ7ER

pith:2011:477MQ7ERWFBNVZDDUCYA42SNBB

not attested not anchored not stored refs pending

A Spitzer Transmission Spectrum for the Exoplanet GJ 436b, Evidence for Stellar Variability, and Constraints on Dayside Flux Variations

David Charbonneau, Derek Homeier, Drake Deming, Eric Agol, Gregory Laughlin, Gregory W. Henry, Heather A. Knutson, Jean-Michel Desert, Jessie L. Christiansen, Jonathan Langton, Nicolas B. Cowan, Nikku Madhusudhan, Sara Seager

arxiv:1104.2901 v1 · 2011-04-14 · 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{477MQ7ERWFBNVZDDUCYA42SNBB}

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	2026-05-18T02:02:28.510770Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e7fec87c91b142dae463a0b00e6a4d085011ec23e7d5962dfd9d0b269493e6de

Aliases

arxiv: 1104.2901 · arxiv_version: 1104.2901v1 · doi: 10.48550/arxiv.1104.2901 · pith_short_12: 477MQ7ERWFBN · pith_short_16: 477MQ7ERWFBNVZDD · pith_short_8: 477MQ7ER

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/477MQ7ERWFBNVZDDUCYA42SNBB \
  | 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: e7fec87c91b142dae463a0b00e6a4d085011ec23e7d5962dfd9d0b269493e6de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "20f071de4053c1af578a2847dfe42b883feacfb8ffd5c72bea9aadca2e301af3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2011-04-14T20:00:03Z",
    "title_canon_sha256": "4a663b145a9afa772c1c8c58e5e112fa2cf6133b45f00cc7e44615a4953c5e50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.2901",
    "kind": "arxiv",
    "version": 1
  }
}