Pith Number

pith:FCO2A5I5

pith:2019:FCO2A5I55D2MDN3ORKB6DBPPI3

not attested not anchored not stored refs pending

Discovery of an equal-mass "twin" binary population reaching 1000+ AU separations

Gaspard Duch\^ene, Haijun Tian, Hans-Walter Rix, Kareem El-Badry, Maxwell Moe

arxiv:1906.10128 v2 · 2019-06-24 · astro-ph.SR · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FCO2A5I55D2MDN3ORKB6DBPPI3}

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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.

Cited by

1 paper in Pith

New Way to Date Globular Clusters: Brown Dwarf Cooling Sequences

Receipt and verification

First computed	2026-07-05T00:10:38.735402Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

289da0751de8f4c1b76e8a83e185ef46f0277bdfb8d965343d057e13850ff114

Aliases

arxiv: 1906.10128 · arxiv_version: 1906.10128v2 · doi: 10.48550/arxiv.1906.10128 · pith_short_12: FCO2A5I55D2M · pith_short_16: FCO2A5I55D2MDN3O · pith_short_8: FCO2A5I5

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/FCO2A5I55D2MDN3ORKB6DBPPI3 \
  | 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: 289da0751de8f4c1b76e8a83e185ef46f0277bdfb8d965343d057e13850ff114

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e2a32136f35c4e661f0ff729665743ff84a3231fe1458bfc40bcb141fee8b96",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-06-24T18:00:00Z",
    "title_canon_sha256": "519036d9bfc70c326f89174de3d145faaec56f21978ffbd358c22eb186104984"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.10128",
    "kind": "arxiv",
    "version": 2
  }
}