Pith Number

pith:WJZ4FQIB

pith:2016:WJZ4FQIBDEBRLKAXGUQ7KJ2YOY

not attested not anchored not stored refs pending

The Discovery of a Low-Luminosity SPIRAL DRAGN

A.M.M. Scaife, A.O.Clarke, D.D.Mulcahy, H.Kobayashi, H.Matsumoto, I.Mitsuishi, M.Y.Mao, R.Suganuma, Y.Babazaki, Y.Tawara

arxiv:1609.04820 v1 · 2016-09-15 · 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{WJZ4FQIBDEBRLKAXGUQ7KJ2YOY}

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	2026-05-18T01:00:41.806770Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b273c2c101190315a8173521f52758761c72d7fded76f936354a106073181dec

Aliases

arxiv: 1609.04820 · arxiv_version: 1609.04820v1 · doi: 10.48550/arxiv.1609.04820 · pith_short_12: WJZ4FQIBDEBR · pith_short_16: WJZ4FQIBDEBRLKAX · pith_short_8: WJZ4FQIB

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/WJZ4FQIBDEBRLKAXGUQ7KJ2YOY \
  | 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: b273c2c101190315a8173521f52758761c72d7fded76f936354a106073181dec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2399049a93254eb42bf41e1a86bc2aa89c39605b1458379fe5994478ff29a6d1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-09-15T20:00:01Z",
    "title_canon_sha256": "f0bc15eccdd4554f309daeeb194ef6e7cfb8211cb1fb143d844f8e139d968cc4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.04820",
    "kind": "arxiv",
    "version": 1
  }
}