Pith Number

pith:XY4CCB5F

pith:2002:XY4CCB5FAXVL5RUX32CPIS77HS

not attested not anchored not stored refs pending

An unusual iron Lo-BAL quasar detected by ISOCAM

A. Biviano, A. Franceschini, A. Moorwood, B.M. Poggianti, C. Cesarsky, D. Elbaz, D. Fadda, E. Pompei, H. Flores, P.-A. Duc, P. B. Hall, P. Chanial, P. Monaco

arxiv:astro-ph/0205022 v1 · 2002-05-02 · 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{XY4CCB5FAXVL5RUX32CPIS77HS}

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	2026-07-04T16:29:57.497747Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be382107a505eabec697de84f44bff3c8833478b1ea0ac6537903ec92224302a

Aliases

arxiv: astro-ph/0205022 · arxiv_version: astro-ph/0205022v1 · doi: 10.48550/arxiv.astro-ph/0205022 · pith_short_12: XY4CCB5FAXVL · pith_short_16: XY4CCB5FAXVL5RUX · pith_short_8: XY4CCB5F

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/XY4CCB5FAXVL5RUX32CPIS77HS \
  | 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: be382107a505eabec697de84f44bff3c8833478b1ea0ac6537903ec92224302a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "871efedc95a9b9d1a0d23b852a4996e9de4ce20848af5e360bfae765b9712c10",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-05-02T14:46:06Z",
    "title_canon_sha256": "b3c3b78638b851c1c6ac22fc4d10aeac9c993c9a167ffd7d108195fcbbdd6468"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0205022",
    "kind": "arxiv",
    "version": 1
  }
}