Pith Number

pith:2OZYF2QJ

pith:1999:2OZYF2QJCEPH3NI3O3DESK7G2L

not attested not anchored not stored refs pending

Building up the Stellar Halo of the Galaxy

Amina Helmi (Sterrewacht Leiden), Garching), Simon D.M. White (MPA

arxiv:astro-ph/9901102 v2 · 1999-01-11 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2OZYF2QJCEPH3NI3O3DESK7G2L}

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.

Cited by

1 paper in Pith

Applying Liouville's Theorem to Gaia Data

Receipt and verification

First computed	2026-07-04T15:42:19.085178Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3b382ea09111e7db51b76c6492be6d2d1bf49836c66e0402b76b880af4df080

Aliases

arxiv: astro-ph/9901102 · arxiv_version: astro-ph/9901102v2 · doi: 10.48550/arxiv.astro-ph/9901102 · pith_short_12: 2OZYF2QJCEPH · pith_short_16: 2OZYF2QJCEPH3NI3 · pith_short_8: 2OZYF2QJ

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/2OZYF2QJCEPH3NI3O3DESK7G2L \
  | 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: d3b382ea09111e7db51b76c6492be6d2d1bf49836c66e0402b76b880af4df080

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4100c85d87b3f248e9fe8b6525ec13f91c9f7329c57075ca0342e364dd220c5a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-01-11T16:16:05Z",
    "title_canon_sha256": "11f00102f953db7dc9a822bd4ffb3629ba8c40aa808f50f5938a61758adaad5f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9901102",
    "kind": "arxiv",
    "version": 2
  }
}