Pith Number

pith:2QNKLPFU

pith:2007:2QNKLPFU323PYMMZSCMZM2KSK4

not attested not anchored not stored refs pending

X-ray source counts in the COSMOS field

A. Comastri, A. Finoguenov, F. Civano, F. Fiore, G. Hasinger, G. Zamorani, H. Boehringer, H. Brunner, I. Matute, J. Silverman, M. Brusa, N. Cappelluti, R. E. Griffiths, R. Gilli, T. Miyaji, V. Mainieri

arxiv:0704.2293 v1 · 2007-04-18 · 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{2QNKLPFU323PYMMZSCMZM2KSK4}

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	2026-07-04T15:00:56.011817Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d41aa5bcb4deb6fc31999099966952572a712f9c9eeed240f59b7f06df6851f5

Aliases

arxiv: 0704.2293 · arxiv_version: 0704.2293v1 · doi: 10.48550/arxiv.0704.2293 · pith_short_12: 2QNKLPFU323P · pith_short_16: 2QNKLPFU323PYMMZ · pith_short_8: 2QNKLPFU

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/2QNKLPFU323PYMMZSCMZM2KSK4 \
  | 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: d41aa5bcb4deb6fc31999099966952572a712f9c9eeed240f59b7f06df6851f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3079266a523ebfd25e0d644a1947bf9b2785b221b69567fc6db8aa66877ebb4c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-04-18T09:06:04Z",
    "title_canon_sha256": "f460dd7d9c77f30e2cc33970cbe4c1255567055b99f3efba718ba0e8bf7692cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0704.2293",
    "kind": "arxiv",
    "version": 1
  }
}