Pith Number

pith:F2R5EW2K

pith:2003:F2R5EW2KJQXTJV7S4M42MYH3UH

not attested not anchored not stored refs pending

The last Gift of BeppoSAX: PDS Observations of the two Blazars 1ES 0507-040 and PKS 1229-021

A. Treves, A. Wolter, E. Pian, F. Tavecchio, G. Ghisellini, L. Chiappetti, L. Maraschi

arxiv:astro-ph/0309045 v1 · 2003-09-02 · 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{F2R5EW2KJQXTJV7S4M42MYH3UH}

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	2026-07-04T16:51:33.625111Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ea3d25b4a4c2f34d7f2e339a660fba1e8198fa17f0641aa44c69d3fd27a8754

Aliases

arxiv: astro-ph/0309045 · arxiv_version: astro-ph/0309045v1 · doi: 10.48550/arxiv.astro-ph/0309045 · pith_short_12: F2R5EW2KJQXT · pith_short_16: F2R5EW2KJQXTJV7S · pith_short_8: F2R5EW2K

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/F2R5EW2KJQXTJV7S4M42MYH3UH \
  | 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: 2ea3d25b4a4c2f34d7f2e339a660fba1e8198fa17f0641aa44c69d3fd27a8754

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f180ad7b4f93029c4bc74d63417d5b5c2e89da17de33e319b228a76b189656d9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-09-02T08:55:43Z",
    "title_canon_sha256": "054f69c11c35b45f4efbe652b59cb2403557be4647ee0f7b1a6ea2c33670974d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0309045",
    "kind": "arxiv",
    "version": 1
  }
}