Pith Number

pith:SRAIXVXN

pith:2018:SRAIXVXNFIHGJ7IS7XAGDZVFQV

not attested not anchored not stored refs pending

Early 2017 observations of TRAPPIST-1 with $\textit{Spitzer}$

Adam J. Burgasser, Amaury H.M.J. Triaud, Artem Burdanov, Brice-Olivier Demory, Didier Queloz, Emeline Bolmont, Emmanuel Jehin, Eric Agol, Franck Selsis, James G. Ingalls, Jeremy Leconte, Julien de Wit, Laetitia Delrez, Michael Gillon, Sean J. Carey, Susan Lederer, Valerie van Grootel

arxiv:1801.02554 v1 · 2018-01-08 · 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{SRAIXVXNFIHGJ7IS7XAGDZVFQV}

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	2026-05-18T00:25:15.336182Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94408bd6ed2a0e64fd12fdc061e6a5856163f5b1e7bfa71be14d1cd989b207b1

Aliases

arxiv: 1801.02554 · arxiv_version: 1801.02554v1 · doi: 10.48550/arxiv.1801.02554 · pith_short_12: SRAIXVXNFIHG · pith_short_16: SRAIXVXNFIHGJ7IS · pith_short_8: SRAIXVXN

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/SRAIXVXNFIHGJ7IS7XAGDZVFQV \
  | 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: 94408bd6ed2a0e64fd12fdc061e6a5856163f5b1e7bfa71be14d1cd989b207b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "065ad7000cdfe4736655c3800b5ae496fb09f6f67cafea17438f1b78340fea18",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-01-08T16:57:01Z",
    "title_canon_sha256": "63c7d2c7e5ee31ceac18e736fed5fa23e8ffad552c30de316935ba9aee0d8597"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.02554",
    "kind": "arxiv",
    "version": 1
  }
}