Pith Number

pith:5BQCOQQR

pith:2016:5BQCOQQRJ2BTR6HVQG2YFA2O56

not attested not anchored not stored refs pending

First detection in gamma-rays of a young radio galaxy: Fermi-LAT observations of the Compact Symmetric Object PKS 1718-649

Alan Loh, Aneta Siemiginowska, Giulia Migliori, Luisa Ostorero, {\L}ukasz Stawarz, Malgorzata Sobolewska, St\'ephane Corbel

arxiv:1604.01987 v1 · 2016-04-07 · 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{5BQCOQQRJ2BTR6HVQG2YFA2O56}

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	2026-05-18T01:16:13.015034Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8602742114e8338f8f581b582834eef897fbf1523fb96854938d84172bcd631

Aliases

arxiv: 1604.01987 · arxiv_version: 1604.01987v1 · doi: 10.48550/arxiv.1604.01987 · pith_short_12: 5BQCOQQRJ2BT · pith_short_16: 5BQCOQQRJ2BTR6HV · pith_short_8: 5BQCOQQR

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/5BQCOQQRJ2BTR6HVQG2YFA2O56 \
  | 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: e8602742114e8338f8f581b582834eef897fbf1523fb96854938d84172bcd631

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "767f9b289562716e89b17b2bd68d09bc297f925121f3060e2f9af9386224dc03",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2016-04-07T13:16:32Z",
    "title_canon_sha256": "7d08badc9f05c9d2a8a504accca93960f069721c6d3a4d9d6e4e97af0413ab0e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.01987",
    "kind": "arxiv",
    "version": 1
  }
}