Pith Number

pith:WKOWTRBM

pith:1999:WKOWTRBMAD7NJMQTWT65HCV62R

not attested not anchored not stored refs pending

Towards an Understanding of the Mid-Infrared Surface Brightness of Normal Galaxies

(2) KPNO, (3) NASA/Ames), Alessandra Contursi (1), Daniel A. Dale, George Helou, Nancy A. Silbermann, Robert H. Rubin (3) ((1) IPAC/Caltech, Sangeeta Malhotra (2)

arxiv:astro-ph/9908100 v1 · 1999-08-09 · 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{WKOWTRBMAD7NJMQTWT65HCV62R}

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	2026-07-04T16:11:30.549531Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b29d69c42c00fed4b213b4fdd38abed4442c43db00090d8de217d78a1ae08114

Aliases

arxiv: astro-ph/9908100 · arxiv_version: astro-ph/9908100v1 · doi: 10.48550/arxiv.astro-ph/9908100 · pith_short_12: WKOWTRBMAD7N · pith_short_16: WKOWTRBMAD7NJMQT · pith_short_8: WKOWTRBM

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/WKOWTRBMAD7NJMQTWT65HCV62R \
  | 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: b29d69c42c00fed4b213b4fdd38abed4442c43db00090d8de217d78a1ae08114

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "23bd232377c8615bbf586b180620996f81e247635083a1bcb639844db8255687",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-08-09T21:01:03Z",
    "title_canon_sha256": "41da6ddb721a44190131484462d1cb4a7c26fe21dc349abf0710200dddfd8bea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9908100",
    "kind": "arxiv",
    "version": 1
  }
}