Pith Number

pith:OPFNJM3Q

pith:2010:OPFNJM3QVCB4FZO7YDSUMPTNDT

not attested not anchored not stored refs pending

Modelling the radio pulses of an ultracool dwarf

A. Antonova, A. Golden, A. Kuznetsov, A.L. MacKinnon, G. Hallinan, J.G. Doyle, S. Yu, Z.H. Zhang

arxiv:1009.1548 v2 · 2010-09-08 · 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{OPFNJM3QVCB4FZO7YDSUMPTNDT}

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	2026-05-18T02:05:35.095843Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73cad4b370a883c2e5dfc0e5463e6d1cfc13c58eaf8ee9c68d00bbfd5a3e9f0f

Aliases

arxiv: 1009.1548 · arxiv_version: 1009.1548v2 · doi: 10.48550/arxiv.1009.1548 · pith_short_12: OPFNJM3QVCB4 · pith_short_16: OPFNJM3QVCB4FZO7 · pith_short_8: OPFNJM3Q

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/OPFNJM3QVCB4FZO7YDSUMPTNDT \
  | 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: 73cad4b370a883c2e5dfc0e5463e6d1cfc13c58eaf8ee9c68d00bbfd5a3e9f0f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d47da8086f67f9d14d54a717e9e23779ca45e86aa856bb7f294a2fe16f4b1a16",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-09-08T14:37:50Z",
    "title_canon_sha256": "44ecf6040370964e586230aaf16ec0d35c8302d34c0eadd254b4e60c580a5678"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.1548",
    "kind": "arxiv",
    "version": 2
  }
}