Pith Number

pith:TLWK7T3P

pith:2018:TLWK7T3PKDA4W3C7J6CBO74PRJ

not attested not anchored not stored refs pending

55 Cancri (Copernicus): A Multi-Planet System with a Hot Super-Earth and a Jupiter Analogue

Debra A. Fischer

arxiv:1807.11925 v1 · 2018-07-31 · 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{TLWK7T3PKDA4W3C7J6CBO74PRJ}

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	2026-05-17T23:54:43.742515Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9aecafcf6f50c1cb6c5f4f84177f8f8a47c0cb0b526bd9eb6019e53f5c023155

Aliases

arxiv: 1807.11925 · arxiv_version: 1807.11925v1 · doi: 10.48550/arxiv.1807.11925 · pith_short_12: TLWK7T3PKDA4 · pith_short_16: TLWK7T3PKDA4W3C7 · pith_short_8: TLWK7T3P

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/TLWK7T3PKDA4W3C7J6CBO74PRJ \
  | 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: 9aecafcf6f50c1cb6c5f4f84177f8f8a47c0cb0b526bd9eb6019e53f5c023155

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1759381001f926ede1595be9ae6a59edec05d73100cc92f50cd5ea863305530b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-07-31T17:11:50Z",
    "title_canon_sha256": "70b142bbb3074d3aed0d7cd4628e4e7089a7f83b337f0f17c60ab281d703370d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.11925",
    "kind": "arxiv",
    "version": 1
  }
}