Pith Number

pith:ZDKY4IQO

pith:2022:ZDKY4IQO3AAAGSEH5WHM25XG2Q

not attested not anchored not stored refs pending

Drift Rates of Narrowband Signals in Long-term SETI Observations for Exoplanets

Haichen Zhao, Jian-Kang Li, Sun Xiaohui, Tong-Jie Zhang, Zhenzhao Tao

arxiv:2208.02511 v4 · 2022-08-04 · 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{ZDKY4IQO3AAAGSEH5WHM25XG2Q}

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	2026-07-05T05:06:14.065566Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8d58e220ed800034887ed8ecd76e6d41280a54bd0d3b1b29d1dc2324227b82c

Aliases

arxiv: 2208.02511 · arxiv_version: 2208.02511v4 · doi: 10.48550/arxiv.2208.02511 · pith_short_12: ZDKY4IQO3AAA · pith_short_16: ZDKY4IQO3AAAGSEH · pith_short_8: ZDKY4IQO

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/ZDKY4IQO3AAAGSEH5WHM25XG2Q \
  | 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: c8d58e220ed800034887ed8ecd76e6d41280a54bd0d3b1b29d1dc2324227b82c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "10901cfc1a683694aa48fed8137a6164fd2ebd74520cccea6aa2bb87a0d33312",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2022-08-04T07:45:36Z",
    "title_canon_sha256": "7330cd6a2cb15d355a6802e3107cc2157a306636182f9a44b112faa580c105a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2208.02511",
    "kind": "arxiv",
    "version": 4
  }
}