Pith Number

pith:EGZCW374

pith:1997:EGZCW374YA3IFXGXAQNPXCN3VJ

not attested not anchored not stored refs pending

Detection of WR stars in the metal-poor starburst galaxy IZw 18

D. Kunth, F. Legrand, J.M. Mas-Hesse, J.-R. Roy, J.R. Walsh

arxiv:astro-ph/9707279 v1 · 1997-07-25 · 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{EGZCW374YA3IFXGXAQNPXCN3VJ}

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.

Cited by

1 paper in Pith

Can current models predict the local black hole merger rate?

Receipt and verification

First computed	2026-07-04T14:15:13.776706Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21b22b6ffcc03682dcd7041afb89bbaa43e2c447fc3a5e1f8a414be66c9d373f

Aliases

arxiv: astro-ph/9707279 · arxiv_version: astro-ph/9707279v1 · doi: 10.48550/arxiv.astro-ph/9707279 · pith_short_12: EGZCW374YA3I · pith_short_16: EGZCW374YA3IFXGX · pith_short_8: EGZCW374

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/EGZCW374YA3IFXGXAQNPXCN3VJ \
  | 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: 21b22b6ffcc03682dcd7041afb89bbaa43e2c447fc3a5e1f8a414be66c9d373f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "839dd82bbff85aabb71499d02e78aa0c610d8ce0b11c9cb9dcb2823de495754a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-07-25T13:42:40Z",
    "title_canon_sha256": "177ee719c53e2540b1ed45fd3d8daa2f9b40d39a969255f42bd3410283547155"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9707279",
    "kind": "arxiv",
    "version": 1
  }
}