Pith Number

pith:VWHSPRXA

pith:2018:VWHSPRXA4NHL3Y4F2TCN5AXI52

not attested not anchored not stored refs pending

The origins of the gamma-ray flux variations of NGC 1275 based on 8 years of Fermi-LAT observations

C. C. Cheung, J. Kataoka, K. Tanada, M. Akita, M. Arimoto, S. W. Digel, Y. Fukazawa

arxiv:1805.02361 v2 · 2018-05-07 · 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{VWHSPRXA4NHL3Y4F2TCN5AXI52}

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	2026-05-18T00:12:17.029428Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad8f27c6e0e34ebde385d4c4de82e8eeaeb2611090ebecb6c6f3e633795b929f

Aliases

arxiv: 1805.02361 · arxiv_version: 1805.02361v2 · doi: 10.48550/arxiv.1805.02361 · pith_short_12: VWHSPRXA4NHL · pith_short_16: VWHSPRXA4NHL3Y4F · pith_short_8: VWHSPRXA

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/VWHSPRXA4NHL3Y4F2TCN5AXI52 \
  | 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: ad8f27c6e0e34ebde385d4c4de82e8eeaeb2611090ebecb6c6f3e633795b929f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58d992e25785e33fb6272e06e4a24993e822ab33052a284d9618eceadea680d0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-05-07T06:25:36Z",
    "title_canon_sha256": "cc7bedac87aff48df6661f3e6e52ecfdc20c2f6b37faa3ec1b2869491d2ed6ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.02361",
    "kind": "arxiv",
    "version": 2
  }
}