Pith Number

pith:CDOXFXJH

pith:2004:CDOXFXJHA2JAH2I6K76SYSGSCM

not attested not anchored not stored refs pending

X-ray number counts of star forming galaxies

2), Andrea Comastri (1), Giancarlo Setti (2) ((1) INAF-Osservatorio Astronomico di Bologna; (2) Universita' di Bologna), Piero Ranalli (1

arxiv:astro-ph/0404087 v2 · 2004-04-05 · 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{CDOXFXJHA2JAH2I6K76SYSGSCM}

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	2026-05-18T00:37:17.446926Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

10dd72dd27069203e91e57fd2c48d213396b5800bc1b316aa8fa9f685b798ab6

Aliases

arxiv: astro-ph/0404087 · arxiv_version: astro-ph/0404087v2 · doi: 10.48550/arxiv.astro-ph/0404087 · pith_short_12: CDOXFXJHA2JA · pith_short_16: CDOXFXJHA2JAH2I6 · pith_short_8: CDOXFXJH

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/CDOXFXJHA2JAH2I6K76SYSGSCM \
  | 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: 10dd72dd27069203e91e57fd2c48d213396b5800bc1b316aa8fa9f685b798ab6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8bc574b54e62f15760ba8aece41b4b53095a0179822fbbfcd758a69383a73489",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-04-05T13:00:02Z",
    "title_canon_sha256": "4b218c08ffeafbdbeed4443b8fe4f67934740186db06cea051a2f4db515e9d60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0404087",
    "kind": "arxiv",
    "version": 2
  }
}