Pith Number

pith:O2HOD42A

pith:2020:O2HOD42A3Y3OMNSPHJUFRVGRQM

not attested not anchored not stored refs pending

Untangling the Galaxy. II. Structure within 3 kpc

Keivan G. Stassun, Kevin Covey, Marina Kounkel

arxiv:2004.07261 v2 · 2020-04-15 · astro-ph.GA · 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{O2HOD42A3Y3OMNSPHJUFRVGRQM}

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	2026-07-05T01:55:50.449299Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

768ee1f340de36e6364f3a6858d4d183170d9f603b69600fb88394ef74635bb2

Aliases

arxiv: 2004.07261 · arxiv_version: 2004.07261v2 · doi: 10.48550/arxiv.2004.07261 · pith_short_12: O2HOD42A3Y3O · pith_short_16: O2HOD42A3Y3OMNSP · pith_short_8: O2HOD42A

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/O2HOD42A3Y3OMNSPHJUFRVGRQM \
  | 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: 768ee1f340de36e6364f3a6858d4d183170d9f603b69600fb88394ef74635bb2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc0ac3a9018462db53042de0c208b8771fa4450ea5f45f2101209d368a8b665f",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-04-15T18:00:33Z",
    "title_canon_sha256": "e404b68cf76e17b595e966e73e2fb81eab8789459301a8627d3ecaac8d6e10e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.07261",
    "kind": "arxiv",
    "version": 2
  }
}