Pith Number

pith:JQKA7OEY

pith:2010:JQKA7OEYHT5T5A3A3DK3CL66XM

not attested not anchored not stored refs pending

The outflow in Mrk 509: A method to calibrate XMM-Newton EPIC-pn and RGS

C. de Vries, E. Costantini, F. Verbunt, J.S. Kaastra, M. Cappi, R.G. Detmers

arxiv:1002.4125 v1 · 2010-02-22 · 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{JQKA7OEYHT5T5A3A3DK3CL66XM}

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	2026-05-18T02:08:58.135289Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c140fb8983cfb3e8360d8d5b12fdebb0e0d901f89ced5c0c64109b9a9e876a3

Aliases

arxiv: 1002.4125 · arxiv_version: 1002.4125v1 · doi: 10.48550/arxiv.1002.4125 · pith_short_12: JQKA7OEYHT5T · pith_short_16: JQKA7OEYHT5T5A3A · pith_short_8: JQKA7OEY

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/JQKA7OEYHT5T5A3A3DK3CL66XM \
  | 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: 4c140fb8983cfb3e8360d8d5b12fdebb0e0d901f89ced5c0c64109b9a9e876a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e634443dcc0d51f1f523a5928ff4b1b72e0f3c40f5406d4ae61fea29987cd96a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-02-22T14:32:04Z",
    "title_canon_sha256": "ec9dc22ab8942d6798a0b4e241bbe60d4fd74b5a7695ba203c0dafb50da86565"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.4125",
    "kind": "arxiv",
    "version": 1
  }
}