Pith Number

pith:DSPAZL43

pith:2005:DSPAZL43V4P3DOE7CH3RNHSJ5Y

not attested not anchored not stored refs pending

Morphologies of Ultracompact HII Regions in W49A and Sgr B2: Prevalence of Shells and a Modified Classification Scheme

A. J. Mercer, C. G. De Pree, D. J. Wilner, J. Deblasio, L. E. Davis

arxiv:astro-ph/0504230 v1 · 2005-04-10 · 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{DSPAZL43V4P3DOE7CH3RNHSJ5Y}

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	2026-07-04T16:52:09.753099Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c9e0caf9baf1fb1b89f11f7169e49ee33f0d35fdd3134cecf8c38cd0a3824ed

Aliases

arxiv: astro-ph/0504230 · arxiv_version: astro-ph/0504230v1 · doi: 10.48550/arxiv.astro-ph/0504230 · pith_short_12: DSPAZL43V4P3 · pith_short_16: DSPAZL43V4P3DOE7 · pith_short_8: DSPAZL43

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/DSPAZL43V4P3DOE7CH3RNHSJ5Y \
  | 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: 1c9e0caf9baf1fb1b89f11f7169e49ee33f0d35fdd3134cecf8c38cd0a3824ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4dfba58adb2995cb80eedc3050ff667634dda1beb7ff7dbb2d570d84e3f27728",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-04-10T14:20:42Z",
    "title_canon_sha256": "74163569dbddb906b1eca44f2b3bedc0253733c491a4cd6d50fc892e9fb4ae15"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0504230",
    "kind": "arxiv",
    "version": 1
  }
}