Pith Number

pith:UN2ABG3R

pith:2003:UN2ABG3ROTYPVYTJLPHHS6QVWN

not attested not anchored not stored refs pending

The BeppoSAX High Energy Large Area Survey (HELLAS) - VI. The radio properties

(2) Penn State Univ.-USA, (3) Oss. Astronomico-Roma Italy, (4) Dip. di Fisica-Univ. di Roma Tre - Italy), A. Comastri (1), C. Vignali (2), F. Fiore (3), F. La Franca (4), G.C. Perola (4) ((1) Oss. Astronomico Bologna-Italy, P. Ciliegi (1)

arxiv:astro-ph/0302556 v1 · 2003-02-26 · 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{UN2ABG3ROTYPVYTJLPHHS6QVWN}

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	2026-07-04T16:36:33.414534Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a374009b7174f0fae2695bce797a15b379cd33e056e90f06b8870b618e85d17e

Aliases

arxiv: astro-ph/0302556 · arxiv_version: astro-ph/0302556v1 · doi: 10.48550/arxiv.astro-ph/0302556 · pith_short_12: UN2ABG3ROTYP · pith_short_16: UN2ABG3ROTYPVYTJ · pith_short_8: UN2ABG3R

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/UN2ABG3ROTYPVYTJLPHHS6QVWN \
  | 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: a374009b7174f0fae2695bce797a15b379cd33e056e90f06b8870b618e85d17e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e43a0c307ed471154f26671058749e4139e470a867922f9f10b21da567fb2a0c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-02-26T19:42:28Z",
    "title_canon_sha256": "e3943d4508892aaddeb93e04ffbb1ac2f0fe17d4ef6772d2f3691504fe1cf672"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0302556",
    "kind": "arxiv",
    "version": 1
  }
}