Pith Number

pith:X7X4X44A

pith:2000:X7X4X44ABO6IREHDEJ7CXJTIFA

not attested not anchored not stored refs pending

Sub-mm and X-ray background: two unrelated phenomena?

A. Cimatti, A. Marconi, C. Vignali, D. Axon, F. Fiore, F. La Franca, G. Matt, G. Risaliti, M. Salvati, P. Severgnini, R. Gilli, R. Maiolino

arxiv:astro-ph/0006233 v1 · 2000-06-16 · 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{X7X4X44ABO6IREHDEJ7CXJTIFA}

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	2026-07-04T14:10:26.381576Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bfefcbf3800bbc8890e3227e2ba66828034ff71b97519002dd00dce8e76c9aeb

Aliases

arxiv: astro-ph/0006233 · arxiv_version: astro-ph/0006233v1 · doi: 10.48550/arxiv.astro-ph/0006233 · pith_short_12: X7X4X44ABO6I · pith_short_16: X7X4X44ABO6IREHD · pith_short_8: X7X4X44A

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/X7X4X44ABO6IREHDEJ7CXJTIFA \
  | 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: bfefcbf3800bbc8890e3227e2ba66828034ff71b97519002dd00dce8e76c9aeb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c23309c99d83a39073c16c0597429a07965f74fda7a90cbf8e838a267dd66564",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-06-16T17:51:15Z",
    "title_canon_sha256": "8b2f696734f8321e921c1a559733a2989e339ed49c31a2945aadaee302dcf5e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0006233",
    "kind": "arxiv",
    "version": 1
  }
}