Pith Number

pith:UMMYLQTK

pith:2021:UMMYLQTKSGPT5SAOCNBWVDLPEN

not attested not anchored not stored refs pending

X-ray Emission of the $\gamma$-ray Loud Young Radio Galaxy NGC 3894

A. Siemiginowska, C.C. Cheung, D.L. Krol, G. Migliori, K. Balasubramaniam, L .Stawarz, M. Sobolewska, R. Thimmappa, V. Marchenko

arxiv:2106.13193 v2 · 2021-06-24 · astro-ph.HE · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UMMYLQTKSGPT5SAOCNBWVDLPEN}

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	2026-07-05T03:36:07.438974Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a31985c26a919f3ec80e13436a8d6f2344aa089dc59eededba58520c6444f4f9

Aliases

arxiv: 2106.13193 · arxiv_version: 2106.13193v2 · doi: 10.48550/arxiv.2106.13193 · pith_short_12: UMMYLQTKSGPT · pith_short_16: UMMYLQTKSGPT5SAO · pith_short_8: UMMYLQTK

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/UMMYLQTKSGPT5SAOCNBWVDLPEN \
  | 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: a31985c26a919f3ec80e13436a8d6f2344aa089dc59eededba58520c6444f4f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "19d07a964197f41e49bf273585e39dfcb595efc5c169527e1794200258040b45",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-06-24T17:17:47Z",
    "title_canon_sha256": "f8edf4f94c1017069de3cb7dc8a7d64171c810e895d40f9d8cf232d31e84b069"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.13193",
    "kind": "arxiv",
    "version": 2
  }
}