Pith Number

pith:TH3LTM5O

pith:2019:TH3LTM5OPX3R6UD2KFNC4X7ITO

not attested not anchored not stored refs pending

Do the TRAPPIST-1 Planets Have Hydrogen-rich Atmospheres?

Masahiro Ogihara, Yasunori Hori

arxiv:1912.05749 v3 · 2019-12-12 · 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{TH3LTM5OPX3R6UD2KFNC4X7ITO}

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	2026-07-05T00:40:05.944393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99f6b9b3ae7df71f507a515a2e5fe89b9efc86f55c0935a3fbc11d0f0cd36e43

Aliases

arxiv: 1912.05749 · arxiv_version: 1912.05749v3 · doi: 10.48550/arxiv.1912.05749 · pith_short_12: TH3LTM5OPX3R · pith_short_16: TH3LTM5OPX3R6UD2 · pith_short_8: TH3LTM5O

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/TH3LTM5OPX3R6UD2KFNC4X7ITO \
  | 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: 99f6b9b3ae7df71f507a515a2e5fe89b9efc86f55c0935a3fbc11d0f0cd36e43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2061301eb8d658eb9299865ebce68e838e0d3e67097187f3e6e3e3b62dead717",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-12-12T03:21:07Z",
    "title_canon_sha256": "114e2666f840ac639d858f10e2fc0f5dfcfb92539f0925da9cdd94545908e666"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.05749",
    "kind": "arxiv",
    "version": 3
  }
}