Pith Number

pith:X4B2LQM5

pith:2018:X4B2LQM5TTXAFT6DW3V4UK5BYQ

not attested not anchored not stored refs pending

A 34.5 day quasi-periodic oscillation in gamma-ray emission from the blazar PKS 2247-131

Jianeng Zhou, Jithesh Vadakkumthani, Jujia Zhang, Liang Chen, Nidia Morrell, Paul J. Wiita, Pengfei Zhang, Zhongxiang Wang

arxiv:1811.02738 v1 · 2018-11-07 · 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{X4B2LQM5TTXAFT6DW3V4UK5BYQ}

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.

Cited by

1 paper in Pith

Cygnus X-3: A variable petaelectronvolt gamma-ray source

Receipt and verification

First computed	2026-07-05T02:45:30.550760Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf03a5c19d9cee02cfc3b6ebca2ba1c419544d5b672ac9dccf1e664682f07b4f

Aliases

arxiv: 1811.02738 · arxiv_version: 1811.02738v1 · doi: 10.48550/arxiv.1811.02738 · pith_short_12: X4B2LQM5TTXA · pith_short_16: X4B2LQM5TTXAFT6D · pith_short_8: X4B2LQM5

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/X4B2LQM5TTXAFT6DW3V4UK5BYQ \
  | 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: bf03a5c19d9cee02cfc3b6ebca2ba1c419544d5b672ac9dccf1e664682f07b4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d84f94fca3b6eddf0f44edef9ac0fb19870e42537dc8e3860bdec3e3fc4dfc13",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-11-07T02:42:12Z",
    "title_canon_sha256": "24cdc992ab9b751c5c2e1c74cd5820e0c29e86f15ee737e1c6e255c472a17d10"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.02738",
    "kind": "arxiv",
    "version": 1
  }
}