Pith Number

pith:PK5KD32W

pith:2012:PK5KD32WY2AZI7CHHNT4VV6KY6

not attested not anchored not stored refs pending

Discovery of a Kiloparsec Scale X-ray/Radio Jet in the z=4.72 Quasar GB 1428+4217

A. Siemiginowska, C. C. Cheung, D. A. Schwartz, D. E. Harris, D. Gobeille, J. F. C. Wardle, L. Stawarz

arxiv:1208.0584 v1 · 2012-08-02 · astro-ph.HE · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PK5KD32WY2AZI7CHHNT4VV6KY6}

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	2026-05-18T01:55:23.702167Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7abaa1ef56c681947c473b67cad7cac78bcb8210c88c8ac843f24fa34c89682d

Aliases

arxiv: 1208.0584 · arxiv_version: 1208.0584v1 · doi: 10.48550/arxiv.1208.0584 · pith_short_12: PK5KD32WY2AZ · pith_short_16: PK5KD32WY2AZI7CH · pith_short_8: PK5KD32W

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/PK5KD32WY2AZI7CHHNT4VV6KY6 \
  | 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: 7abaa1ef56c681947c473b67cad7cac78bcb8210c88c8ac843f24fa34c89682d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aca857f87a8f587d98e57967ed01b142997b9ac3dc43d9b62bd4865e9e9e68b4",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-08-02T19:48:59Z",
    "title_canon_sha256": "14223b4bd819f80993866056055e351d72ae1f5cceca0ee8d18619764cfd16a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.0584",
    "kind": "arxiv",
    "version": 1
  }
}