Pith Number

pith:C4HMJ6GT

pith:2013:C4HMJ6GTJMASFQNKCL2UE73KLI

not attested not anchored not stored refs pending

On the Periods of Negative Superhumps and the Nature of Superoutbursts

J. Smak

arxiv:1301.0187 v1 · 2013-01-02 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C4HMJ6GTJMASFQNKCL2UE73KLI}

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	2026-05-18T03:19:22.342830Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

170ec4f8d34b0122c1aa12f5427f6a5a06edf46778b8b5e7c4c585b15b7cf172

Aliases

arxiv: 1301.0187 · arxiv_version: 1301.0187v1 · doi: 10.48550/arxiv.1301.0187 · pith_short_12: C4HMJ6GTJMAS · pith_short_16: C4HMJ6GTJMASFQNK · pith_short_8: C4HMJ6GT

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/C4HMJ6GTJMASFQNKCL2UE73KLI \
  | 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: 170ec4f8d34b0122c1aa12f5427f6a5a06edf46778b8b5e7c4c585b15b7cf172

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27cc8571b1d2f93ee6da9897358aaccd5687f7fc8b2a25d8db5876d27748a8f8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-01-02T08:40:49Z",
    "title_canon_sha256": "67bd2ba45cdfee6918f11c750fada0bd173ce0e5b9e38d6f377db0226c46d004"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.0187",
    "kind": "arxiv",
    "version": 1
  }
}