Pith Number

pith:UMZ4A4HM

pith:2003:UMZ4A4HMPFEWPKXQ3AOXVA3KB7

not attested not anchored not stored refs pending

Nebular Abundances of Nearby Southern Dwarf Galaxies

2), Canada; (3) University of Washington, Eva K. Grebel (1), Germany; (2) York University, Heidelberg, Henry Lee (1, Paul Hodge (3) ((1) Max-Planck-Institute for Astronomy, Seattle, Toronto, USA)

arxiv:astro-ph/0301492 v1 · 2003-01-24 · 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{UMZ4A4HMPFEWPKXQ3AOXVA3KB7}

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	2026-07-04T16:36:22.992785Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a333c070ec794967aaf0d81d7a836a0fe2e35b666dee76c63cfb52389faba6a8

Aliases

arxiv: astro-ph/0301492 · arxiv_version: astro-ph/0301492v1 · doi: 10.48550/arxiv.astro-ph/0301492 · pith_short_12: UMZ4A4HMPFEW · pith_short_16: UMZ4A4HMPFEWPKXQ · pith_short_8: UMZ4A4HM

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/UMZ4A4HMPFEWPKXQ3AOXVA3KB7 \
  | 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: a333c070ec794967aaf0d81d7a836a0fe2e35b666dee76c63cfb52389faba6a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18f782a7a8ae59457e34c858ddb80d1d97090bf0ad1c5be374104ee3615dab1d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-01-24T10:30:49Z",
    "title_canon_sha256": "523de3c301ecb4da8f194a235d34b6ab62da752d7d5442f4c75e33188c29771b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0301492",
    "kind": "arxiv",
    "version": 1
  }
}