Pith Number

pith:GGURZIEX

pith:2019:GGURZIEXLDUTDRFOFWR7GRMU2C

not attested not anchored not stored refs pending

How to Characterize Habitable Worlds and Signs of Life

L. Kaltenegger

arxiv:1911.05597 v1 · 2019-11-11 · astro-ph.EP · astro-ph.IM · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GGURZIEXLDUTDRFOFWR7GRMU2C}

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	2026-07-05T00:20:21.644218Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31a91ca09758e931c4ae2da3f34594d089c4946328d482c7ca1416aaf2cb85fc

Aliases

arxiv: 1911.05597 · arxiv_version: 1911.05597v1 · doi: 10.48550/arxiv.1911.05597 · pith_short_12: GGURZIEXLDUT · pith_short_16: GGURZIEXLDUTDRFO · pith_short_8: GGURZIEX

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/GGURZIEXLDUTDRFOFWR7GRMU2C \
  | 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: 31a91ca09758e931c4ae2da3f34594d089c4946328d482c7ca1416aaf2cb85fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3884fb7876484979fb664d3af3441078d7b9ac50d83cbe0b9a9bb9762094a8fa",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-11-11T22:05:32Z",
    "title_canon_sha256": "4fb71fa2a44493962ccbd2d19acd4c0720041e86d2344691d989253f51d4388c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.05597",
    "kind": "arxiv",
    "version": 1
  }
}