Pith Number

pith:ABYN5WTG

pith:2004:ABYN5WTG5FDLIMBRRK2HTLC4KT

not attested not anchored not stored refs pending

Measuring the Slope of the Dust Extinction Law and the Power Spectrum of Dust Clouds Using Differentially-Reddened Globular Clusters

J. Melbourne, P. Guhathakurta

arxiv:astro-ph/0404009 v1 · 2004-03-31 · 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{ABYN5WTG5FDLIMBRRK2HTLC4KT}

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	2026-07-04T16:43:30.261560Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0070deda66e946b430318ab479ac5c54e4fc897a6a0620d8500cbfe7e554ab50

Aliases

arxiv: astro-ph/0404009 · arxiv_version: astro-ph/0404009v1 · doi: 10.48550/arxiv.astro-ph/0404009 · pith_short_12: ABYN5WTG5FDL · pith_short_16: ABYN5WTG5FDLIMBR · pith_short_8: ABYN5WTG

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/ABYN5WTG5FDLIMBRRK2HTLC4KT \
  | 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: 0070deda66e946b430318ab479ac5c54e4fc897a6a0620d8500cbfe7e554ab50

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "674bd59e9d74d9f73d914cff7602c62375670bc0fdc16cb34c20cd27ff966b26",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-03-31T23:38:08Z",
    "title_canon_sha256": "6ef138e627be23e581ea0a3f37a0889278b8cf58702e89466d6ab94cc607e42f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0404009",
    "kind": "arxiv",
    "version": 1
  }
}