Pith Number

pith:7DAAD3AS

pith:2000:7DAAD3AS6O4ZCPLIE4PM7ZUO4P

not attested not anchored not stored refs pending

BeppoSAX Observations of Markarian 501 in June 1999

A. Celotti, A. Djannati-Atai, A. Treves, B. Degrange, C.M. Raiteri, C.M. Urry, D. Smith, E. Palazzi, E. Pian, F. Aharonian, F. Tavecchio, G. Fossati, G. Ghisellini, G. Tagliaferri, G. Tosti, H. Krawczynski, L. Chiappetti, L. Maraschi, M. Catanese, M. Villata, P. Giommi, R.M. Sambruna

arxiv:astro-ph/0007268 v1 · 2000-07-18 · 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{7DAAD3AS6O4ZCPLIE4PM7ZUO4P}

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	2026-07-04T16:16:55.444321Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8c001ec12f3b9913d68271ecfe68ee3e69920eefa1432cc2b8b6ebb1304bc34

Aliases

arxiv: astro-ph/0007268 · arxiv_version: astro-ph/0007268v1 · doi: 10.48550/arxiv.astro-ph/0007268 · pith_short_12: 7DAAD3AS6O4Z · pith_short_16: 7DAAD3AS6O4ZCPLI · pith_short_8: 7DAAD3AS

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/7DAAD3AS6O4ZCPLIE4PM7ZUO4P \
  | 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: f8c001ec12f3b9913d68271ecfe68ee3e69920eefa1432cc2b8b6ebb1304bc34

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6bacaff767a7d483e711c39c277c3ec9edfc2ae6eed1075c8c02364a4fe6ea3d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-07-18T15:43:15Z",
    "title_canon_sha256": "80f0347d2f3386ecf2b12eb9e8a18acdd7577401b002c3b403cf037c9b9bf41a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0007268",
    "kind": "arxiv",
    "version": 1
  }
}