Pith Number

pith:ZPCCOVP3

pith:2021:ZPCCOVP33ZHAJCX3GS2POHBXLV

not attested not anchored not stored refs pending

A classifier for spurious astrometric solutions in Gaia EDR3

Andrew Gould, Andrzej Udalski, Eleonora Zari, Gregory Green, Hans-Walter Rix, Jan Rybizki, Kareem El-Badry, Markus Demleitner, Richard L. Smart

arxiv:2101.11641 v3 · 2021-01-27 · astro-ph.IM · 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{ZPCCOVP33ZHAJCX3GS2POHBXLV}

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	2026-07-05T03:42:39.163118Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbc42755fbde4e048afb34b4f71c375d5d95fc64f8aeef94d87a985230883986

Aliases

arxiv: 2101.11641 · arxiv_version: 2101.11641v3 · doi: 10.48550/arxiv.2101.11641 · pith_short_12: ZPCCOVP33ZHA · pith_short_16: ZPCCOVP33ZHAJCX3 · pith_short_8: ZPCCOVP3

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/ZPCCOVP33ZHAJCX3GS2POHBXLV \
  | 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: cbc42755fbde4e048afb34b4f71c375d5d95fc64f8aeef94d87a985230883986

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "19b7c447cf697acc72a50cd7a7984b4ac0ff4c21f0ced07957f21b16cbc09a11",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-01-27T19:03:12Z",
    "title_canon_sha256": "3359f5fd4bad892350243653aeaeb443fba2c99eceff97a86d19d10e407c77bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.11641",
    "kind": "arxiv",
    "version": 3
  }
}