Pith Number

pith:G33DVK6V

pith:2019:G33DVK6VFE5UZ4XX2TVQJXKJCF

not attested not anchored not stored refs pending

Evidence of AGN activity in the gamma-ray emission from two starburst galaxies

Fang-Kun Peng, Hai-Ming Zhang, Jun-Feng Wang, Qi-jun Zhi, Xiang-Yu Wang

arxiv:1906.06720 v2 · 2019-06-16 · 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{G33DVK6VFE5UZ4XX2TVQJXKJCF}

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	2026-07-05T00:17:06.843222Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

36f63aabd5293b4cf2f7d4eb04dd49114f1f7d4cd7a0c0a43b7fa8e6de3afd64

Aliases

arxiv: 1906.06720 · arxiv_version: 1906.06720v2 · doi: 10.48550/arxiv.1906.06720 · pith_short_12: G33DVK6VFE5U · pith_short_16: G33DVK6VFE5UZ4XX · pith_short_8: G33DVK6V

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/G33DVK6VFE5UZ4XX2TVQJXKJCF \
  | 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: 36f63aabd5293b4cf2f7d4eb04dd49114f1f7d4cd7a0c0a43b7fa8e6de3afd64

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3113f66accc72c5f8634307a9b03c3bfbed03572faf0a704d2f286823ff73b5",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-06-16T15:50:20Z",
    "title_canon_sha256": "283555e34ef6331f87f6525c43bb2b661470f45209de1143c02b2b6a043e93b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.06720",
    "kind": "arxiv",
    "version": 2
  }
}