Pith Number

pith:EP3KEF6C

pith:2018:EP3KEF6C4VAIIT3HOK3EHNUKYY

not attested not anchored not stored refs pending

Predicting the Orbit of TRAPPIST-1i

David Kipping

arxiv:1807.10835 v1 · 2018-07-27 · 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{EP3KEF6C4VAIIT3HOK3EHNUKYY}

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	2026-05-18T00:09:37.272393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23f6a217c2e540844f6772b643b68ac62037dc03a63fcb9fe3e8aa4084f64f05

Aliases

arxiv: 1807.10835 · arxiv_version: 1807.10835v1 · doi: 10.48550/arxiv.1807.10835 · pith_short_12: EP3KEF6C4VAI · pith_short_16: EP3KEF6C4VAIIT3H · pith_short_8: EP3KEF6C

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/EP3KEF6C4VAIIT3HOK3EHNUKYY \
  | 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: 23f6a217c2e540844f6772b643b68ac62037dc03a63fcb9fe3e8aa4084f64f05

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ecaef3bc00ff5f3e6757044134778d1c8110a37ddc33619a4c24a5a80a22f3d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-07-27T21:30:21Z",
    "title_canon_sha256": "d18e45bbacea7ce05535b688dd3f899dda0cc6adc8eddf41faec101fdbbfec92"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.10835",
    "kind": "arxiv",
    "version": 1
  }
}