Pith Number

pith:O5HIFGIB

pith:2003:O5HIFGIBX34ONWLFUDSJQ3OKP4

not attested not anchored not stored refs pending

Probing the star formation epoch with Wilkinson Microwave Anisotropy Probe (WMAP) data and high-redshift QSOs

Jun'ichi Yokoyama

arxiv:astro-ph/0302263 v1 · 2003-02-13 · 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{O5HIFGIBX34ONWLFUDSJQ3OKP4}

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	2026-05-18T01:40:39.377332Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

774e829901bef8e6d965a0e4986dca7f3f83d9d44ab8756f7dc161b098877bcc

Aliases

arxiv: astro-ph/0302263 · arxiv_version: astro-ph/0302263v1 · doi: 10.48550/arxiv.astro-ph/0302263 · pith_short_12: O5HIFGIBX34O · pith_short_16: O5HIFGIBX34ONWLF · pith_short_8: O5HIFGIB

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/O5HIFGIBX34ONWLFUDSJQ3OKP4 \
  | 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: 774e829901bef8e6d965a0e4986dca7f3f83d9d44ab8756f7dc161b098877bcc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7d7c737e6c93eaad0dde641d031e6b698c1860ee6284f13963644f7f6a37311",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-02-13T12:27:14Z",
    "title_canon_sha256": "52b19d1dc1e5d20bd1c59bc2c5fa6cb67ef12b690264f52e922a54557ff07637"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0302263",
    "kind": "arxiv",
    "version": 1
  }
}