Pith Number

pith:RRJTBRUL

pith:2018:RRJTBRULHYULOYG2UK36ITEDKP

not attested not anchored not stored refs pending

A numerical twist on the observational spin parameter, $\lambda_R$

A.S.G. Robotham, C. Power, D.S. Taranu, K.E. Harborne, L. Cortese

arxiv:1811.06148 v1 · 2018-11-15 · 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{RRJTBRULHYULOYG2UK36ITEDKP}

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	2026-05-17T23:59:48.328199Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c5330c68b3e28b760daa2b7e44c8353e453262274d69e50d4222a56a8705ec6

Aliases

arxiv: 1811.06148 · arxiv_version: 1811.06148v1 · doi: 10.48550/arxiv.1811.06148 · pith_short_12: RRJTBRULHYUL · pith_short_16: RRJTBRULHYULOYG2 · pith_short_8: RRJTBRUL

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/RRJTBRULHYULOYG2UK36ITEDKP \
  | 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: 8c5330c68b3e28b760daa2b7e44c8353e453262274d69e50d4222a56a8705ec6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1143cd83ac4d46a8093b8ccc13cc9afcd90913c9f905ec784a73214073b07aac",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-11-15T02:50:23Z",
    "title_canon_sha256": "8c07f82edd82055732bad44bb750fe7afcb8a185c54c48a2b9cf815d1848c1a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.06148",
    "kind": "arxiv",
    "version": 1
  }
}