Pith Number

pith:ZTUY6RWW

pith:2007:ZTUY6RWWU7UL7JXV7VEHVFWXV5

not attested not anchored not stored refs pending

Interstellar Medium Oxygen Abundances of Dwarf Irregular Galaxies in Centaurus A and Nearby Groups

2), (2) Univ. of Minnesota, (3) Institute of Astronomy, (4) Astronomical Institute, D. B. Zucker (3), E. K. Grebel (4) ((1) Gemini Observatory, Henry Lee (1, Univ. of Basel), Univ. of Cambridge

arxiv:astro-ph/0701315 v1 · 2007-01-10 · 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{ZTUY6RWWU7UL7JXV7VEHVFWXV5}

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	2026-07-04T15:16:30.402829Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cce98f46d6a7e8bfa6f5fd487a96d7af51b611bb0f01504886989441baf90cae

Aliases

arxiv: astro-ph/0701315 · arxiv_version: astro-ph/0701315v1 · doi: 10.48550/arxiv.astro-ph/0701315 · pith_short_12: ZTUY6RWWU7UL · pith_short_16: ZTUY6RWWU7UL7JXV · pith_short_8: ZTUY6RWW

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/ZTUY6RWWU7UL7JXV7VEHVFWXV5 \
  | 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: cce98f46d6a7e8bfa6f5fd487a96d7af51b611bb0f01504886989441baf90cae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c236bd1fe7de29d5c899c188043570fb96c253c0d4141b999a4531ed44a8e8d7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-01-10T21:02:54Z",
    "title_canon_sha256": "f8fd96ae5f930fad9d41c671b64a9bd0ba3449ff89b37a97da45fedad45d4876"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0701315",
    "kind": "arxiv",
    "version": 1
  }
}