Pith Number

pith:UJ2EDAFJ

pith:2010:UJ2EDAFJADMLYWUZN7L56GKX37

not attested not anchored not stored refs pending

A Flare in the Jet of Pictor A

A. Siemiginowska, C. M. Urry, D. A. Schwartz, D. Evans, D.M. Worrall, E. Lenc, E. S. Perlman, F. Massaro, H. Landt, H. L. Marshall, J. Croston, {\L}. Stawarz, M. Birkinshaw, M.J. Hardcastle

arxiv:1004.0191 v1 · 2010-04-01 · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UJ2EDAFJADMLYWUZN7L56GKX37}

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	2026-05-18T02:08:14.969416Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2744180a900d8bc5a996fd7df1957dfd495cc3b85b85d78d22086441621ab83

Aliases

arxiv: 1004.0191 · arxiv_version: 1004.0191v1 · doi: 10.48550/arxiv.1004.0191 · pith_short_12: UJ2EDAFJADML · pith_short_16: UJ2EDAFJADMLYWUZ · pith_short_8: UJ2EDAFJ

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/UJ2EDAFJADMLYWUZN7L56GKX37 \
  | 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: a2744180a900d8bc5a996fd7df1957dfd495cc3b85b85d78d22086441621ab83

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45059b04d499229e9a24af4c34d99e513dd53d017a724478b658025dba43b4a8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2010-04-01T17:59:39Z",
    "title_canon_sha256": "10f681d5ec7cb2ff64cad939b187eaa7715b78b84b571b5cddffe6da580a05d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.0191",
    "kind": "arxiv",
    "version": 1
  }
}