Pith Number

pith:7FUUWH7I

pith:2011:7FUUWH7I5OVVCVFQGFTWN2KFRY

not attested not anchored not stored refs pending

Measuring redshift through X-ray spectroscopy of galaxy clusters: results from Chandra data and future prospects

2), (2) INAF Osservatorio Astronomico di Trieste, 3), (3) INFN-- National Institute for Nuclear Physics, Beijing Normal University, China, Germany), Heng Yu (1, Italy, Italy (4) Dipartimento di Fisica dell'Universit\`a di Trieste, Italy (5) ESO - European Southern Observatory, Paolo Tozzi (2, Piero Rosati (5), Stefano Borgani (4, Zong-Hong Zhu (1) ((1) Department of Astronomy

arxiv:1102.2089 v2 · 2011-02-10 · 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{7FUUWH7I5OVVCVFQGFTWN2KFRY}

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	2026-05-18T02:22:39.005454Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9694b1fe8ebab5154b0316766e9458e0ce0d85f433acbbbe8a287e6853a9d86

Aliases

arxiv: 1102.2089 · arxiv_version: 1102.2089v2 · doi: 10.48550/arxiv.1102.2089 · pith_short_12: 7FUUWH7I5OVV · pith_short_16: 7FUUWH7I5OVVCVFQ · pith_short_8: 7FUUWH7I

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/7FUUWH7I5OVVCVFQGFTWN2KFRY \
  | 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: f9694b1fe8ebab5154b0316766e9458e0ce0d85f433acbbbe8a287e6853a9d86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3889fb40e840b373b9d4d08c1b780795c02fc9e2d5d0ed3d54ed3ea12a869b8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-02-10T11:55:51Z",
    "title_canon_sha256": "2a051de885b3ee47a56689ce6833cf5f28415902f2efc65c75c6d3de44a22dcc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.2089",
    "kind": "arxiv",
    "version": 2
  }
}