Pith Number

pith:ZW2CDD3J

pith:2018:ZW2CDD3JYJGJMAVLO5DB4Q54HB

not attested not anchored not stored refs pending

A rapid occultation event in NGC 3227

A.Lobban, J.N.Reeves, L. Miller, S.B. Kraemer, T.J.Turner, V.Braito

arxiv:1809.01172 v1 · 2018-09-04 · 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{ZW2CDD3JYJGJMAVLO5DB4Q54HB}

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	2026-05-18T00:06:00.769690Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cdb4218f69c24c9602ab77461e43bc3842ab72ba89c884d737c5c6f4c91957d6

Aliases

arxiv: 1809.01172 · arxiv_version: 1809.01172v1 · doi: 10.48550/arxiv.1809.01172 · pith_short_12: ZW2CDD3JYJGJ · pith_short_16: ZW2CDD3JYJGJMAVL · pith_short_8: ZW2CDD3J

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/ZW2CDD3JYJGJMAVLO5DB4Q54HB \
  | 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: cdb4218f69c24c9602ab77461e43bc3842ab72ba89c884d737c5c6f4c91957d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "746c3fe0d9620e1a60164867779b0fb1a4f425219afe10cf8da7c316c5ecce68",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-09-04T18:01:39Z",
    "title_canon_sha256": "c4d3006a22efee96d44f089a3d9ef62adab3cea51ec7290867b938fd544416ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.01172",
    "kind": "arxiv",
    "version": 1
  }
}