Pith Number

pith:WDE3IVCJ

pith:2021:WDE3IVCJG2Z6LICE7WMMB2PSI4

not attested not anchored not stored refs pending

Measuring height difference using two-way satellite time and frequency transfer

Chenghui Cai1, Kuangchao Wu1, Peng Cheng, Wenbin Shen, Xiao Sun, Ziyu Shen

arxiv:2112.10292 v1 · 2021-12-20 · physics.geo-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WDE3IVCJG2Z6LICE7WMMB2PSI4}

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	2026-07-05T03:42:13.407591Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0c9b4544936b3e5a044fd98c0e9f247286ab352c04fa8675ad960c351eacbb1

Aliases

arxiv: 2112.10292 · arxiv_version: 2112.10292v1 · doi: 10.48550/arxiv.2112.10292 · pith_short_12: WDE3IVCJG2Z6 · pith_short_16: WDE3IVCJG2Z6LICE · pith_short_8: WDE3IVCJ

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/WDE3IVCJG2Z6LICE7WMMB2PSI4 \
  | 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: b0c9b4544936b3e5a044fd98c0e9f247286ab352c04fa8675ad960c351eacbb1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45a7237193112595643705081e7c7a79263a59de486f885e213b841c5f1ba149",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2021-12-20T00:32:41Z",
    "title_canon_sha256": "ee59fd1264ca6958b72f60380de68155a4f434bfb3ef2b18b32d19a8b9d5a2fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.10292",
    "kind": "arxiv",
    "version": 1
  }
}