Pith Number

pith:JFN3S5R2

pith:2008:JFN3S5R2DUYI6S2QFUAH6K2CYW

not attested not anchored not stored refs pending

The outer regions of galaxy clusters: Chandra constraints on the X-ray surface brightness

I. Balestra, S. Ettori

arxiv:0811.3556 v2 · 2008-11-21 · 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{JFN3S5R2DUYI6S2QFUAH6K2CYW}

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	2026-05-18T04:36:40.825025Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

495bb9763a1d308f4b502d007f2b42c58f4d50caee3afbc9ec7d1ba600e5b802

Aliases

arxiv: 0811.3556 · arxiv_version: 0811.3556v2 · doi: 10.48550/arxiv.0811.3556 · pith_short_12: JFN3S5R2DUYI · pith_short_16: JFN3S5R2DUYI6S2Q · pith_short_8: JFN3S5R2

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/JFN3S5R2DUYI6S2QFUAH6K2CYW \
  | 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: 495bb9763a1d308f4b502d007f2b42c58f4d50caee3afbc9ec7d1ba600e5b802

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0fbe7843e254566ad6e5ab76f39c0e7d061fa0ed815fa660d8162476c078379",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-11-21T15:02:30Z",
    "title_canon_sha256": "f6d98d8474f13b87cb4b39ae151499f06bc0094ce0e20a65f41495a7ad090597"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.3556",
    "kind": "arxiv",
    "version": 2
  }
}