Pith Number

pith:4DIOJDZB

pith:2009:4DIOJDZBZ6V6V3SD3ZWSRIRKOM

not attested not anchored not stored refs pending

Alien Maps of an Ocean-Bearing World

C.M. Lisse (Johns Hopkins), D. Charbonneau (Harvard), D. Deming (NASA Goddard), D.D. Wellnitz (University of Maryland), E. Agol, M.F. A'Hearn, N.B. Cowan, S. Seager (MIT), T.A. Livengood, T. Robinson (University of Washington), V.S. Meadows

arxiv:0905.3742 v1 · 2009-05-22 · 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{4DIOJDZBZ6V6V3SD3ZWSRIRKOM}

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	2026-07-04T15:46:30.006251Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0d0e48f21cfabeaee43de6d28a22a731c2435a4a17c7c1370390f1659b82570

Aliases

arxiv: 0905.3742 · arxiv_version: 0905.3742v1 · doi: 10.48550/arxiv.0905.3742 · pith_short_12: 4DIOJDZBZ6V6 · pith_short_16: 4DIOJDZBZ6V6V3SD · pith_short_8: 4DIOJDZB

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/4DIOJDZBZ6V6V3SD3ZWSRIRKOM \
  | 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: e0d0e48f21cfabeaee43de6d28a22a731c2435a4a17c7c1370390f1659b82570

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef4a9e17b7866282f0edce1f40cfb3499c7800831dd7a4cb6c944112d8b7aec7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-05-22T20:00:06Z",
    "title_canon_sha256": "98a497d26c13f5f047e7691ee61ec472ff3cb43a827e6e9de49cfd62b59bd74c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.3742",
    "kind": "arxiv",
    "version": 1
  }
}