Pith Number

pith:OGR7ZT5Y

pith:2018:OGR7ZT5YJ5XU2ZVVPVI3NEBQMS

not attested not anchored not stored refs pending

Not all stars form in clusters - measuring the kinematics of OB associations with $Gaia$

Jacob L. Ward (Heidelberg), J. M. Diederik Kruijssen (Heidelberg)

arxiv:1801.03938 v1 · 2018-01-11 · 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{OGR7ZT5YJ5XU2ZVVPVI3NEBQMS}

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	2026-05-18T00:24:47.013407Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71a3fccfb84f6f4d66b57d51b6903064a3856b5de2192bd6b069d181befebd11

Aliases

arxiv: 1801.03938 · arxiv_version: 1801.03938v1 · doi: 10.48550/arxiv.1801.03938 · pith_short_12: OGR7ZT5YJ5XU · pith_short_16: OGR7ZT5YJ5XU2ZVV · pith_short_8: OGR7ZT5Y

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/OGR7ZT5YJ5XU2ZVVPVI3NEBQMS \
  | 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: 71a3fccfb84f6f4d66b57d51b6903064a3856b5de2192bd6b069d181befebd11

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "427fbda67e3a77c8a1dca2d8871a080f0abfc5f954fcdf47d8c03f7fd4f4d650",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-01-11T19:00:01Z",
    "title_canon_sha256": "275c6513b1fc7b466d25dac5942843ef8e907bd6888048b98f0b6bf9baa6b4dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.03938",
    "kind": "arxiv",
    "version": 1
  }
}