Pith Number

pith:XZFQX5H6

pith:2011:XZFQX5H62LU2ZM5Y3ZJBVT3MEE

not attested not anchored not stored refs pending

Fe Ka line emission from the Arches cluster region - evidence for ongoing particle bombardment?

D. Porquet, P. Predehl, R. Capelli, R.S. Warwick, S. Gillessen

arxiv:1104.2039 v1 · 2011-04-11 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XZFQX5H62LU2ZM5Y3ZJBVT3MEE}

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	2026-05-18T02:02:35.203044Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be4b0bf4fed2e9acb3b8de521acf6c211b8dc83f5668200486af941d78d2b5cf

Aliases

arxiv: 1104.2039 · arxiv_version: 1104.2039v1 · doi: 10.48550/arxiv.1104.2039 · pith_short_12: XZFQX5H62LU2 · pith_short_16: XZFQX5H62LU2ZM5Y · pith_short_8: XZFQX5H6

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/XZFQX5H62LU2ZM5Y3ZJBVT3MEE \
  | 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: be4b0bf4fed2e9acb3b8de521acf6c211b8dc83f5668200486af941d78d2b5cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e6d58ea3df6d091a1e552cd818c5a8f5b0e6b4416faf38f02650e7e0eabf155",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-04-11T20:00:03Z",
    "title_canon_sha256": "e660ad81c0df0f2f0d040b7b1fb25d544f86baa6419e49eb708b0b8d5f71e2f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.2039",
    "kind": "arxiv",
    "version": 1
  }
}