Pith Number

pith:NXYB74P7

pith:2018:NXYB74P7UEPBVJYEOU56PKXQPN

not attested not anchored not stored refs pending

The nature of the TRAPPIST-1 exoplanets

Adam J. Burgasser, Amaury H.M.J. Triaud, Anthony Caldas, Artem Burdanov, Brice-Olivier Demory, Caroline Dorn, Daniel Fabrycky, David M. Hernandez, Didier Queloz, \'Emeline Bolmont, Emmanu\"el Jehin, Eric Agol, Franck Selsis, James G. Ingalls, J\'er\'emy leconte, Julien de Wit, Kevin Heng, Laetitia Delrez, Marko Sestovic, Martin Turbet, Micha\"el Gillon, Sean Carey, Sean N. Raymond, Simon L. Grimm, Susan Lederer, Val\'erie Van Grootel

arxiv:1802.01377 v1 · 2018-02-05 · 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{NXYB74P7UEPBVJYEOU56PKXQPN}

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	2026-05-18T00:24:26.565133Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6df01ff1ffa11e1aa704753be7aaf07b62fecba3e25349fcfe84dbe204364e3f

Aliases

arxiv: 1802.01377 · arxiv_version: 1802.01377v1 · doi: 10.48550/arxiv.1802.01377 · pith_short_12: NXYB74P7UEPB · pith_short_16: NXYB74P7UEPBVJYE · pith_short_8: NXYB74P7

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/NXYB74P7UEPBVJYEOU56PKXQPN \
  | 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: 6df01ff1ffa11e1aa704753be7aaf07b62fecba3e25349fcfe84dbe204364e3f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a21dee3b95815bdd8071420a869a37e8afa671912ec54a8daf0e6763d93761a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-02-05T13:12:48Z",
    "title_canon_sha256": "55cb8e43874b6a0b612f8c504c82fedb5485e8c628f5c39c43666b2de595eb47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.01377",
    "kind": "arxiv",
    "version": 1
  }
}