Pith Number

pith:E4L2R5IN

pith:2013:E4L2R5INUGILKIGIRBHUL72B2U

not attested not anchored not stored refs pending

The Robo-AO software: Fully autonomous operation of a laser guide star adaptive optics and science system

Alexander R. Rudy, Ankit Arya, A. N. Ramaprakash, Athanasios Papadopoulos, Christoph Baranec, Mahesh P. Burse, Marland Sitt, Nicholas M. Law, Reed L. Riddle, Richard G. Dekany, Shriharsh P. Tendulkar

arxiv:1301.6790 v1 · 2013-01-28 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E4L2R5INUGILKIGIRBHUL72B2U}

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	2026-05-18T03:35:12.331881Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2717a8f50da190b520c8884f45ff41d5216e1ce280ad33286963df160761fe18

Aliases

arxiv: 1301.6790 · arxiv_version: 1301.6790v1 · doi: 10.48550/arxiv.1301.6790 · pith_short_12: E4L2R5INUGIL · pith_short_16: E4L2R5INUGILKIGI · pith_short_8: E4L2R5IN

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/E4L2R5INUGILKIGIRBHUL72B2U \
  | 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: 2717a8f50da190b520c8884f45ff41d5216e1ce280ad33286963df160761fe18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c6c9dc0abef011cbee983986ef5719cbbf90c52020a205faf76a1af10146c28",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-01-28T21:59:09Z",
    "title_canon_sha256": "1941d0fcb08e8f1aed4e3ec8989554b3f9ae5fe27a3eb144269284908e7b2f83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.6790",
    "kind": "arxiv",
    "version": 1
  }
}