Pith Number

pith:5MWFO3G6

pith:2020:5MWFO3G6U6M26CAWAOGS77NGIO

not attested not anchored not stored refs pending

Precise Ages of Field Stars From White Dwarf Companions in Gaia DR2

Dan Qiu, Gao-Chao Liu, Hai-Jun Tian, Hans-Walter Rix, Jia-Lu Nie, Morgan Fouesneau, Ted von Hippel, Xi-Dong Wang

arxiv:2012.04890 v2 · 2020-12-09 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5MWFO3G6U6M26CAWAOGS77NGIO}

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	2026-07-05T02:43:53.102967Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb2c576cdea799af0816038d2ffda643aa3a8b2bdfda4777c12aab7cfd9a9163

Aliases

arxiv: 2012.04890 · arxiv_version: 2012.04890v2 · doi: 10.48550/arxiv.2012.04890 · pith_short_12: 5MWFO3G6U6M2 · pith_short_16: 5MWFO3G6U6M26CAW · pith_short_8: 5MWFO3G6

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/5MWFO3G6U6M26CAWAOGS77NGIO \
  | 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: eb2c576cdea799af0816038d2ffda643aa3a8b2bdfda4777c12aab7cfd9a9163

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a9e82f9af65cd3a261dc012f7ac8c0a7fd9a3782d4835b314f3bb4aa7d13551",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-12-09T07:18:42Z",
    "title_canon_sha256": "53eaf0eef15a7af6338f5e0fec09fd3f676f016c13234f1a05dd6c600181ffe4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.04890",
    "kind": "arxiv",
    "version": 2
  }
}