Pith Number

pith:4WUNZ2FU

pith:2003:4WUNZ2FUWCBV5VBVN5YWYIKEKM

not attested not anchored not stored refs pending

Uncovering Additional Clues to Galaxy Evolution. II. The Environmental Impact of the Virgo Cluster on the Evolution of Dwarf Irregular Galaxies

2), (2) York University, (3) Observatorio Astronomico Nacional, Canada, Germany, Heidelberg, Henry Lee (1, Marshall L. McCall (2), Mexico), Michael G. Richer (3) ((1) Max-Planck-Institute for Astronomy, Toronto, UNAM

arxiv:astro-ph/0303359 v1 · 2003-03-17 · 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{4WUNZ2FUWCBV5VBVN5YWYIKEKM}

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	2026-07-04T16:36:40.676153Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5a8dce8b4b0835ed4356f716c2144533094bd9bce197c856dcb7c023a5eb0c9

Aliases

arxiv: astro-ph/0303359 · arxiv_version: astro-ph/0303359v1 · doi: 10.48550/arxiv.astro-ph/0303359 · pith_short_12: 4WUNZ2FUWCBV · pith_short_16: 4WUNZ2FUWCBV5VBV · pith_short_8: 4WUNZ2FU

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/4WUNZ2FUWCBV5VBVN5YWYIKEKM \
  | 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: e5a8dce8b4b0835ed4356f716c2144533094bd9bce197c856dcb7c023a5eb0c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da54d1cca522036e4c6314f2037a6a06a356cbd2f988d3558026f62034c2f05f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-03-17T10:01:32Z",
    "title_canon_sha256": "00280ed628bac38cd4e85763e1af3554d5dd1d44e8b0c8edbe8e291cd6c7db69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0303359",
    "kind": "arxiv",
    "version": 1
  }
}