Pith Number

pith:V2BNJ5D5

pith:2013:V2BNJ5D5K5QUZ4V75ZI3OWWF5Y

not attested not anchored not stored refs pending

Using pulsar timing arrays and the quantum normalization condition to constrain relic gravitational waves

Cheng-Shi Zhao, Jin-Zhong Liu, Ming-lei Tong, Ting-Gao Yang, Wen Zhao, Yang Zhang

arxiv:1311.7192 v1 · 2013-11-28 · astro-ph.CO · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{V2BNJ5D5K5QUZ4V75ZI3OWWF5Y}

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	2026-05-18T01:46:05.332159Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae82d4f47d57614cf2bfee51b75ac5ee2271231e254844a0907b28353e3802b9

Aliases

arxiv: 1311.7192 · arxiv_version: 1311.7192v1 · doi: 10.48550/arxiv.1311.7192 · pith_short_12: V2BNJ5D5K5QU · pith_short_16: V2BNJ5D5K5QUZ4V7 · pith_short_8: V2BNJ5D5

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/V2BNJ5D5K5QUZ4V75ZI3OWWF5Y \
  | 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: ae82d4f47d57614cf2bfee51b75ac5ee2271231e254844a0907b28353e3802b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "068387605e2144d85ca508c8b3a5314e4f19fcdd92357bcbbe46bc9284def7f8",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-11-28T03:12:22Z",
    "title_canon_sha256": "2ece4123a1b3581559ed26ad99306193803388dbad41f838934b402b35aafb46"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.7192",
    "kind": "arxiv",
    "version": 1
  }
}