Pith Number

pith:SWIGUHJV

pith:2009:SWIGUHJV5MLKBCSJATEFA2G5EW

not attested not anchored not stored refs pending

A High Fidelity Sample of Cold Front Clusters from the Chandra Archive

Matt S. Owers (Swinburne/UNSW), Maxim Markevitch (CfA), Paul E.J. Nulsen (CfA), Warrick J. Couch (Swinburne)

arxiv:0909.2645 v1 · 2009-09-14 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SWIGUHJV5MLKBCSJATEFA2G5EW}

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	2026-05-18T02:34:30.080469Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

95906a1d35eb16a08a4904c85068dd25ad0411af5f2e6d78eb903367ce249498

Aliases

arxiv: 0909.2645 · arxiv_version: 0909.2645v1 · doi: 10.48550/arxiv.0909.2645 · pith_short_12: SWIGUHJV5MLK · pith_short_16: SWIGUHJV5MLKBCSJ · pith_short_8: SWIGUHJV

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/SWIGUHJV5MLKBCSJATEFA2G5EW \
  | 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: 95906a1d35eb16a08a4904c85068dd25ad0411af5f2e6d78eb903367ce249498

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc3e6d7876a614d928bc70f79cc85d974426ea33015cce8408f4b8249b46fa3e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-09-14T20:26:13Z",
    "title_canon_sha256": "3a89f469f68d1acfe1e7174cccbc78c1374394fd6b1158b04aa8583c577b87c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.2645",
    "kind": "arxiv",
    "version": 1
  }
}