Pith Number

pith:HUO4HGEW

pith:2005:HUO4HGEWEGP4QG5QMF2QDHM2WG

not attested not anchored not stored refs pending

Star Formation Rates in Cooling Flow Clusters: A UV Pilot Study with Archival XMM-Newton Optical Monitor Data

(2) NASA GSFC), Amalia K. Hicks (1), Richard Mushotzky (2) ((1) University of Colorado at Boulder

arxiv:astro-ph/0508143 v1 · 2005-08-04 · 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{HUO4HGEWEGP4QG5QMF2QDHM2WG}

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.

Cited by

1 paper in Pith

Directly Imaging the Cooling Flow in the Phoenix Cluster

Receipt and verification

First computed	2026-07-04T17:14:58.827081Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d1dc39896219fc81bb06175019d9ab1878040181c02c307e9c994e8d0382539

Aliases

arxiv: astro-ph/0508143 · arxiv_version: astro-ph/0508143v1 · doi: 10.48550/arxiv.astro-ph/0508143 · pith_short_12: HUO4HGEWEGP4 · pith_short_16: HUO4HGEWEGP4QG5Q · pith_short_8: HUO4HGEW

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/HUO4HGEWEGP4QG5QMF2QDHM2WG \
  | 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: 3d1dc39896219fc81bb06175019d9ab1878040181c02c307e9c994e8d0382539

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "684d7f49a045969a1bd16db0559969d1f8f2265e50d5370f119d8560324319a3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-08-04T20:00:03Z",
    "title_canon_sha256": "2ffa2125096fd33892c1210cb03f6eb198ad49f9c711d2f1991aa683c4ecc8c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0508143",
    "kind": "arxiv",
    "version": 1
  }
}