Pith Number

pith:SUDUDAMK

pith:2020:SUDUDAMK27KKCSMBJ3GSF4BB6F

not attested not anchored not stored refs pending

The X-Ray Cavity Around Hotspot E in Cygnus A: Tunneled by a Deflected Jet

Amalya C. Johnson, Bradford Snios, Lerato Sebokolodi, Martijn de Vries, Michael W. Wise, Paul E. J. Nulsen, Ralph P. Kraft, Richard A. Perley

arxiv:2002.02978 v2 · 2020-02-07 · 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{SUDUDAMK27KKCSMBJ3GSF4BB6F}

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	2026-07-05T00:50:13.865683Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

950741818ad7d4a149814ecd22f021f1481057f37587d6f8fd457fd40f9cd937

Aliases

arxiv: 2002.02978 · arxiv_version: 2002.02978v2 · doi: 10.48550/arxiv.2002.02978 · pith_short_12: SUDUDAMK27KK · pith_short_16: SUDUDAMK27KKCSMB · pith_short_8: SUDUDAMK

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/SUDUDAMK27KKCSMBJ3GSF4BB6F \
  | 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: 950741818ad7d4a149814ecd22f021f1481057f37587d6f8fd457fd40f9cd937

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca643f550c023525e703fe7c0ff5ac0bd269a2692dacbf2d3196392f596dbc3a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-02-07T19:00:25Z",
    "title_canon_sha256": "49ebb0d9a28666a69048dfe388dddd0218a991ec55563607dbb68ad9e9b13f42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.02978",
    "kind": "arxiv",
    "version": 2
  }
}