Pith Number

pith:CW5ZJ4TF

pith:2016:CW5ZJ4TF2ZQWLM7T6FE2TCO3F2

not attested not anchored not stored refs pending

Atmospheric characterization of Proxima b by coupling the Sphere high-contrast imager to the Espresso spectrograph

A. Cheetham, C. Lovis, D. Ehrenreich, D. Mouillet, D. S\'egransan, F. Pepe, F. Wildi, H.-M. Schmid, I. Snellen, J.H.C. Martins, J.-L. Beuzit, N. Astudillo-Defru, N.C. Santos, P. Figueira, S.P. Quanz, S. Udry, T. Forveille, U. Conod, X. Bonfils, X. Delfosse

arxiv:1609.03082 v2 · 2016-09-10 · astro-ph.EP · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CW5ZJ4TF2ZQWLM7T6FE2TCO3F2}

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	2026-05-18T00:50:19.142257Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15bb94f265d66165b3f3f149a989db2eb54aeb33cc6bf9a6f57bc48fa61ce63e

Aliases

arxiv: 1609.03082 · arxiv_version: 1609.03082v2 · doi: 10.48550/arxiv.1609.03082 · pith_short_12: CW5ZJ4TF2ZQW · pith_short_16: CW5ZJ4TF2ZQWLM7T · pith_short_8: CW5ZJ4TF

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/CW5ZJ4TF2ZQWLM7T6FE2TCO3F2 \
  | 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: 15bb94f265d66165b3f3f149a989db2eb54aeb33cc6bf9a6f57bc48fa61ce63e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a6f2e8fdee87a5d6381aef636269ba6b7560a75120eaa891d5095fcb734d69f",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2016-09-10T19:49:40Z",
    "title_canon_sha256": "a5cdd7562723ba14d1bb3f3a8faa48615e351f8252572818da9a37c5c9744320"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.03082",
    "kind": "arxiv",
    "version": 2
  }
}