Pith Number

pith:WLMWHBCL

pith:2018:WLMWHBCLTON6QBAU6KUW2SAUKQ

not attested not anchored not stored refs pending

The continued importance of habitability studies

Amit Levi, Dorian S. Abbot, Eric T. Wolf, Keiko Hamano, Laura Schaefer, Ramses M. Ramirez, Robin D. Wordsworth, Tyler D. Robinson, Vladimir Airapetian, Yuka Fujii

arxiv:1803.00215 v2 · 2018-03-01 · 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{WLMWHBCLTON6QBAU6KUW2SAUKQ}

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	2026-05-17T23:52:18.553381Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2d963844b9b9be80414f2a96d4814541a37402a9873358c90d17e4b816a54b6

Aliases

arxiv: 1803.00215 · arxiv_version: 1803.00215v2 · doi: 10.48550/arxiv.1803.00215 · pith_short_12: WLMWHBCLTON6 · pith_short_16: WLMWHBCLTON6QBAU · pith_short_8: WLMWHBCL

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/WLMWHBCLTON6QBAU6KUW2SAUKQ \
  | 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: b2d963844b9b9be80414f2a96d4814541a37402a9873358c90d17e4b816a54b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6404e65abfad22be266f3c6226a24525fb91c5159536119d7ba423a91e6d603",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-03-01T05:18:53Z",
    "title_canon_sha256": "b3070033a7705ee02acf2990470692ce66006e8789da2fa53d0d761bbac1d413"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.00215",
    "kind": "arxiv",
    "version": 2
  }
}