Pith Number

pith:4SQSTYLJ

pith:2020:4SQSTYLJ33LSNU3HPOK4NXRDOW

not attested not anchored not stored refs pending

Extreme intra-hour variability of the radio source J1402+5347 discovered with Apertif

A.H.W.M. Coolen, A.M. Kutkin, A.R. Offringa, B. Adebahr, B. Hut, D.M. Lucero, D. Vohl, E.A.K. Adams, E. Orru`, G.M. Loose, H. De'nes, H.K. Vedantham, H. Mulder, J.M. van der Hulst, J. van Leeuwen, J. Ziemke, K.M. Hess, L.C. Oostrum, M.J. Norden, M. Ruiter, N.J. Vermaas, R.H. van den Brink, R. Morganti, R. Schulz, S. Damstra, S.J. Wijnholds, T.A. Oosterloo, V.A. Moss, W.J.G. de Blok, Y. Maan

arxiv:2008.07945 v1 · 2020-08-18 · astro-ph.GA · 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{4SQSTYLJ33LSNU3HPOK4NXRDOW}

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	2026-07-05T01:33:43.298233Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4a129e169ded726d3677b95c6de2375a45105c43e6cbef179404cdb7665d0cc

Aliases

arxiv: 2008.07945 · arxiv_version: 2008.07945v1 · doi: 10.48550/arxiv.2008.07945 · pith_short_12: 4SQSTYLJ33LS · pith_short_16: 4SQSTYLJ33LSNU3H · pith_short_8: 4SQSTYLJ

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/4SQSTYLJ33LSNU3HPOK4NXRDOW \
  | 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: e4a129e169ded726d3677b95c6de2375a45105c43e6cbef179404cdb7665d0cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d50f7d329d42c26780048a0322c702b375532f0d4c6721d9fddc5ded5acfb6f",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-08-18T14:20:45Z",
    "title_canon_sha256": "d26068e37dcd966c1f94c0af8b83a84e0f95279ba24329873d81d080b9118186"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.07945",
    "kind": "arxiv",
    "version": 1
  }
}