Pith Number

pith:2QD2GH7B

pith:2000:2QD2GH7BGGOLLJSNRU4RPYYZD5

not attested not anchored not stored refs pending

Cosmic Dust: The Ulysses perspective

Eberhard Gr\"un, Harald Kr\"uger, Markus Landgraf

arxiv:astro-ph/0012226 v1 · 2000-12-11 · 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{2QD2GH7BGGOLLJSNRU4RPYYZD5}

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	2026-05-18T01:35:23.000581Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d407a31fe1319cb5a64d8d3917e3191f51688ddaf8be032c0a849c135fbec94f

Aliases

arxiv: astro-ph/0012226 · arxiv_version: astro-ph/0012226v1 · doi: 10.48550/arxiv.astro-ph/0012226 · pith_short_12: 2QD2GH7BGGOL · pith_short_16: 2QD2GH7BGGOLLJSN · pith_short_8: 2QD2GH7B

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/2QD2GH7BGGOLLJSNRU4RPYYZD5 \
  | 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: d407a31fe1319cb5a64d8d3917e3191f51688ddaf8be032c0a849c135fbec94f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f804a349ad0ded5082e177b5d487d324b4ca14ac99a80190c8780be2fd01f547",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-12-11T12:28:02Z",
    "title_canon_sha256": "0bb220b8602944caea03e84766d6deed7f98ce5f7b2acb375b058a963630627e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0012226",
    "kind": "arxiv",
    "version": 1
  }
}