Pith Number

pith:MXBRQ7SD

pith:2001:MXBRQ7SDDPTXZ7TOZL5GIFYQEO

not attested not anchored not stored refs pending

Extreme synchrotron BL Lac objects

A.Celotti, A. Treves, A. Wolter, F. Tavecchio, G. Fossati, G. Ghisellini, G. Tagliaferri, L. Costamante, L. Maraschi, M. Chiaberge, P. Giommi

arxiv:astro-ph/0103343 v2 · 2001-03-21 · 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{MXBRQ7SDDPTXZ7TOZL5GIFYQEO}

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.

Cited by

1 paper in Pith

Intrinsic GeV-TeV gamma-ray emission from EHSP blazars

Receipt and verification

First computed	2026-05-18T01:40:44.784760Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

65c3187e431be77cfe6ecafa64171023ada8c7676b1fecf6bd859486470bb7b0

Aliases

arxiv: astro-ph/0103343 · arxiv_version: astro-ph/0103343v2 · doi: 10.48550/arxiv.astro-ph/0103343 · pith_short_12: MXBRQ7SDDPTX · pith_short_16: MXBRQ7SDDPTXZ7TO · pith_short_8: MXBRQ7SD

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/MXBRQ7SDDPTXZ7TOZL5GIFYQEO \
  | 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: 65c3187e431be77cfe6ecafa64171023ada8c7676b1fecf6bd859486470bb7b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a518c55bb1a469687b9cefbf40974fa7ed698c26d945aca6d943c70f8b8ed128",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-03-21T16:22:24Z",
    "title_canon_sha256": "91571e519a6d8a464d1521444b5a6e06b19cd95a216a7289e3facf1fcf4117be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0103343",
    "kind": "arxiv",
    "version": 2
  }
}