Pith Number

pith:THPYBN6D

pith:1999:THPYBN6DLOJC2FL3AWKRFL5XLI

not attested not anchored not stored refs pending

BeppoSAX LECS background subtraction techniques

2), (2) University of Oxford, (3) MPE/Garching, (4) BeppoSAX SDC, 5) ((1) ESA/ESTEC, (5) Southampton University), A. Malizia (4, A.N. Parmar (1), A. Orr (1), D. Ricci (4), M. Guainazzi (1), M. J. Freyberg (3), N. Shane (1, T. Oosterbroek (1)

arxiv:astro-ph/9902075 v1 · 1999-02-04 · 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{THPYBN6DLOJC2FL3AWKRFL5XLI}

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	2026-05-18T00:48:10.508573Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99df80b7c35b922d157b059512afb75a3d8c5c624495d08a4d0dee9d220580f9

Aliases

arxiv: astro-ph/9902075 · arxiv_version: astro-ph/9902075v1 · doi: 10.48550/arxiv.astro-ph/9902075 · pith_short_12: THPYBN6DLOJC · pith_short_16: THPYBN6DLOJC2FL3 · pith_short_8: THPYBN6D

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/THPYBN6DLOJC2FL3AWKRFL5XLI \
  | 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: 99df80b7c35b922d157b059512afb75a3d8c5c624495d08a4d0dee9d220580f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b5dd1547ae544f4ff0044c65893770d896bd0c87fc29ee4d52341634e86bc18",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-02-04T15:36:03Z",
    "title_canon_sha256": "76d4084a214d409e4f672e944ff6b632d276dfb302f40045d67f38f97612dbe1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9902075",
    "kind": "arxiv",
    "version": 1
  }
}