Pith Number

pith:YF7EVPJP

pith:2001:YF7EVPJPFZRDBSEMNRQJSKCJG7

not attested not anchored not stored refs pending

The Consequences of the Cosmic Star-Formation Rate: X-ray Number Counts

A. Ptak, N. White, P. Ghosh, R. Griffiths

arxiv:astro-ph/0108302 v1 · 2001-08-18 · 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{YF7EVPJPFZRDBSEMNRQJSKCJG7}

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	2026-07-04T16:23:59.290201Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c17e4abd2f2e6230c88c6c6099284937f3387b5b06f347b366d11b1059e53a25

Aliases

arxiv: astro-ph/0108302 · arxiv_version: astro-ph/0108302v1 · doi: 10.48550/arxiv.astro-ph/0108302 · pith_short_12: YF7EVPJPFZRD · pith_short_16: YF7EVPJPFZRDBSEM · pith_short_8: YF7EVPJP

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/YF7EVPJPFZRDBSEMNRQJSKCJG7 \
  | 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: c17e4abd2f2e6230c88c6c6099284937f3387b5b06f347b366d11b1059e53a25

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d8134c8db9cd89fda084d25a349a4579a0a60e8a0606562f37e2a78932b76b8",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-08-18T03:14:35Z",
    "title_canon_sha256": "caa81b66e974878d4ee836e92d79f97396cde0341250fc1d1f53e0ca3013f23f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0108302",
    "kind": "arxiv",
    "version": 1
  }
}