Pith Number

pith:4KFFFSLS

pith:2009:4KFFFSLS27REP7JTHUFDQF6PCA

not attested not anchored not stored refs pending

A direct limit on the turbulent velocity of the intracluster medium in the core of Abell 1835 from XMM-Newton

(2) CfA, (3) Purdue), A.C. Fabian (1), Cambridge, J.R. Peterson (3) ((1) IoA, J.S. Sanders (1), R.K. Smith (2)

arxiv:0911.0763 v2 · 2009-11-04 · 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{4KFFFSLS27REP7JTHUFDQF6PCA}

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	2026-05-18T04:42:02.679856Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e28a52c972d7e247fd333d0a3817cf10251601c9c3fd8039b3a3e9e297c785ec

Aliases

arxiv: 0911.0763 · arxiv_version: 0911.0763v2 · doi: 10.48550/arxiv.0911.0763 · pith_short_12: 4KFFFSLS27RE · pith_short_16: 4KFFFSLS27REP7JT · pith_short_8: 4KFFFSLS

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/4KFFFSLS27REP7JTHUFDQF6PCA \
  | 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: e28a52c972d7e247fd333d0a3817cf10251601c9c3fd8039b3a3e9e297c785ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f126c6638bfbbb3daad268857f70b7c8c949a047664cb1de60e6db270c9c8d9b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-11-04T09:55:21Z",
    "title_canon_sha256": "8e05f6909f1d20f693b1ac544f825127994979b488fe45e73031f25212f1d1d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.0763",
    "kind": "arxiv",
    "version": 2
  }
}