Pith Number

pith:MKY657QO

pith:2003:MKY657QOOAPUTJE43SU434YYIN

not attested not anchored not stored refs pending

New Light on the Stellar Populations in IZw18: Deep Near-Infrared Imaging

Leslie K. Hunt, Trinh X. Thuan, & Yuri I. Izotov

arxiv:astro-ph/0301255 v1 · 2003-01-14 · 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{MKY657QOOAPUTJE43SU434YYIN}

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	2026-05-18T01:07:33.944497Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

62b1eefe0e701f49a49cdca9cdf3184355b10b4f702a1b93e72cf71551bd9c41

Aliases

arxiv: astro-ph/0301255 · arxiv_version: astro-ph/0301255v1 · doi: 10.48550/arxiv.astro-ph/0301255 · pith_short_12: MKY657QOOAPU · pith_short_16: MKY657QOOAPUTJE4 · pith_short_8: MKY657QO

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/MKY657QOOAPUTJE43SU434YYIN \
  | 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: 62b1eefe0e701f49a49cdca9cdf3184355b10b4f702a1b93e72cf71551bd9c41

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32749bdc28677652ccf40cfb0a1b1aae6199c8cee10abf3173396794e284f400",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-01-14T14:13:51Z",
    "title_canon_sha256": "1753e0872f462f76a3740f2df93323eb4d206581a79f3ca5327a0c7646a3c19a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0301255",
    "kind": "arxiv",
    "version": 1
  }
}