Pith Number

pith:VRCYYDVQ

pith:2003:VRCYYDVQBEJT3WUGF6JYWWTKPA

not attested not anchored not stored refs pending

Cosmic Reionisation by Stellar Sources: Population II Stars

Aaron Sokasian, Lars Hernquist, Tom Abel, Volker Springel

arxiv:astro-ph/0303098 v1 · 2003-03-04 · 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{VRCYYDVQBEJT3WUGF6JYWWTKPA}

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	2026-07-04T16:36:35.681844Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac458c0eb009133dda862f938b5a6a783db78882f91d131bd6a89183d3502122

Aliases

arxiv: astro-ph/0303098 · arxiv_version: astro-ph/0303098v1 · doi: 10.48550/arxiv.astro-ph/0303098 · pith_short_12: VRCYYDVQBEJT · pith_short_16: VRCYYDVQBEJT3WUG · pith_short_8: VRCYYDVQ

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/VRCYYDVQBEJT3WUGF6JYWWTKPA \
  | 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: ac458c0eb009133dda862f938b5a6a783db78882f91d131bd6a89183d3502122

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "434cd8e3b3edf32032d0cc13bd4f19a2539b1a8e610f009ac9e77bd80ca38633",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-03-04T23:29:16Z",
    "title_canon_sha256": "98ca30db59864b30712708b245be60d3d503424759dc663e46bb35d7b83b4909"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0303098",
    "kind": "arxiv",
    "version": 1
  }
}