Pith Number

pith:6I444AD7

pith:2020:6I444AD7QMEBJEPWUNN4JKSV6S

not attested not anchored not stored refs pending

Machine Learning for Nanohertz Gravitational Wave Detection and Parameter Estimation with Pulsar Timing Array

Di Li, Jin Li, MengNi Chen, Yi Feng, Yuanhong Zhong

arxiv:2003.13928 v2 · 2020-03-31 · 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{6I444AD7QMEBJEPWUNN4JKSV6S}

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	2026-07-05T01:41:51.635063Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f239ce007f83081491f6a35bc4aa55f480142647f1c11e8d781a17cd9115ec6c

Aliases

arxiv: 2003.13928 · arxiv_version: 2003.13928v2 · doi: 10.48550/arxiv.2003.13928 · pith_short_12: 6I444AD7QMEB · pith_short_16: 6I444AD7QMEBJEPW · pith_short_8: 6I444AD7

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/6I444AD7QMEBJEPWUNN4JKSV6S \
  | 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: f239ce007f83081491f6a35bc4aa55f480142647f1c11e8d781a17cd9115ec6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f66933103fbdc3f491e78abe933f4e1598d44b88654e5336aacfdc72dd5411c8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2020-03-31T03:05:13Z",
    "title_canon_sha256": "e8daccbefd7aada33acb971d265bfdc12d5e471fb68e4f937aa0bb5058e0a7dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.13928",
    "kind": "arxiv",
    "version": 2
  }
}