Pith Number

pith:QWV33XPF

pith:2013:QWV33XPF2V2DJLXEF4AG6CKNOR

not attested not anchored not stored refs pending

PULSE: Palomar Ultraviolet Laser for the Study of Exoplanets

Christoph Baranec, Marcos van Dam, Richard Dekany, Rick Burruss

arxiv:1309.4431 v1 · 2013-09-17 · 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{QWV33XPF2V2DJLXEF4AG6CKNOR}

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	2026-05-18T03:13:08.730795Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85abbddde5d57434aee42f006f094d74437edd7f810bb6d4203b88306c2a5777

Aliases

arxiv: 1309.4431 · arxiv_version: 1309.4431v1 · doi: 10.48550/arxiv.1309.4431 · pith_short_12: QWV33XPF2V2D · pith_short_16: QWV33XPF2V2DJLXE · pith_short_8: QWV33XPF

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/QWV33XPF2V2DJLXEF4AG6CKNOR \
  | 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: 85abbddde5d57434aee42f006f094d74437edd7f810bb6d4203b88306c2a5777

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "521f3c148b549c6f2ff69e2a36761fc98f609d0a481737c06a550721edaf85ca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-09-17T19:24:14Z",
    "title_canon_sha256": "90b7f45116a01fc7a964ca6e279bee6e6db90fde9e18e1ca80b234e60ce7d294"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.4431",
    "kind": "arxiv",
    "version": 1
  }
}