Pith Number

pith:URPOM4H2

pith:2006:URPOM4H2JALSG6BVFUIX4I4OLB

not attested not anchored not stored refs pending

The Spectral Energy Distribution of Dust Emission in the Edge-on Spiral Galaxy NGC 4631 as seen with Spitzer and JCMT

Aigen Li, Bruce T. Draine, Charles W. Engelbracht, Daniela Calzetti, Daniel A. Dale, David Hollenbach, Eric J. Murphy, George Helou, George J. Bendo, John-David T. Smith, Jr., Karl D. Gordon, Moire K. M. Prescott, Robert C. Kennicutt

arxiv:astro-ph/0607669 v1 · 2006-07-31 · 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{URPOM4H2JALSG6BVFUIX4I4OLB}

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	2026-05-18T03:47:43.059013Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a45ee670fa48172378352d117e238e584f646ffc97a0c73565fe8f4776cb40bb

Aliases

arxiv: astro-ph/0607669 · arxiv_version: astro-ph/0607669v1 · doi: 10.48550/arxiv.astro-ph/0607669 · pith_short_12: URPOM4H2JALS · pith_short_16: URPOM4H2JALSG6BV · pith_short_8: URPOM4H2

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/URPOM4H2JALSG6BVFUIX4I4OLB \
  | 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: a45ee670fa48172378352d117e238e584f646ffc97a0c73565fe8f4776cb40bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e3af29f39500c0061c2fd13b4faac810ab218466e89bc6a5648192bec1d58d6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-07-31T09:12:49Z",
    "title_canon_sha256": "c11301f5dcf757542698a1c24855b447bc1ba4f8d8cd6f234f3d361df7a6e72b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0607669",
    "kind": "arxiv",
    "version": 1
  }
}