Pith Number

pith:3GFWWIGA

pith:1998:3GFWWIGASP5NH4QQ27QXWMLCK3

not attested not anchored not stored refs pending

The BeppoSAX Deep Surveys

A. Comastri, D. Ricci, F. Fiore, M.C. Maccarone, P. Giommi, S. Molendi

arxiv:astro-ph/9801222 v1 · 1998-01-23 · 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{3GFWWIGASP5NH4QQ27QXWMLCK3}

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	2026-05-18T04:28:57.271764Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d98b6b20c093fad3f210d7e17b316256f530002454bc7339a27bf3bb370d8006

Aliases

arxiv: astro-ph/9801222 · arxiv_version: astro-ph/9801222v1 · doi: 10.48550/arxiv.astro-ph/9801222 · pith_short_12: 3GFWWIGASP5N · pith_short_16: 3GFWWIGASP5NH4QQ · pith_short_8: 3GFWWIGA

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/3GFWWIGASP5NH4QQ27QXWMLCK3 \
  | 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: d98b6b20c093fad3f210d7e17b316256f530002454bc7339a27bf3bb370d8006

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03a50de59217be40d31a8fcb5594f0ae048919ff2e3db2d531c21002fa2be930",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-01-23T11:18:00Z",
    "title_canon_sha256": "5df844795aabf96be4ed31c0920c6897f9f48ee78266ca2b305c3c508b61e266"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9801222",
    "kind": "arxiv",
    "version": 1
  }
}