Pith Number

pith:4EB4YYOA

pith:2010:4EB4YYOAKKPDK5KXC3YWEB4DHT

not attested not anchored not stored refs pending

One moment in time - modeling star formation in the Antennae

2), 4), 5) ((1) Uni-Sternwarte Munich (2) MPA (3) Strasbourg (4) Vienna (5) Planetarium Mannheim), Christian M. Boily (3), Christian Theis (4, Florent Renaud (3, Hanna Kotarba (1), Peter H. Johansson (1), Simon J. Karl (1), Thorsten Naab (1

arxiv:1003.0685 v2 · 2010-03-02 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4EB4YYOAKKPDK5KXC3YWEB4DHT}

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	2026-05-18T02:08:47.309769Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e103cc61c0529e35755716f16207833cf6bc39900ae83e8b547b0d7414b48ed5

Aliases

arxiv: 1003.0685 · arxiv_version: 1003.0685v2 · doi: 10.48550/arxiv.1003.0685 · pith_short_12: 4EB4YYOAKKPD · pith_short_16: 4EB4YYOAKKPDK5KX · pith_short_8: 4EB4YYOA

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/4EB4YYOAKKPDK5KXC3YWEB4DHT \
  | 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: e103cc61c0529e35755716f16207833cf6bc39900ae83e8b547b0d7414b48ed5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c57c4df7d095cbc0cb2fe27a6926088541d13cb555de66a52fdcaa6bd90c483d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-03-02T21:15:01Z",
    "title_canon_sha256": "6a3afb1cebdc011938c4b27dc4319fa9711e3d054a2b4c826e64488ee01f2451"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.0685",
    "kind": "arxiv",
    "version": 2
  }
}