Pith Number

pith:5YC2RVQT

pith:2018:5YC2RVQT6JMP6KPPOXNOSCLMGD

not attested not anchored not stored refs pending

A 3.8 ps RMS time synchronization implemented in a 20 nm FPGA

Cheng-Zhi Peng, Hong-Bo Xie, Qi Shen, Sheng-Kai Liao, Yang Li

arxiv:1806.03400 v1 · 2018-06-09 · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5YC2RVQT6JMP6KPPOXNOSCLMGD}

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	2026-05-18T00:13:43.498049Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee05a8d613f258ff29ef75dae9096c30ec7b3b200e3f382e7d41f98d51dc90f9

Aliases

arxiv: 1806.03400 · arxiv_version: 1806.03400v1 · doi: 10.48550/arxiv.1806.03400 · pith_short_12: 5YC2RVQT6JMP · pith_short_16: 5YC2RVQT6JMP6KPP · pith_short_8: 5YC2RVQT

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/5YC2RVQT6JMP6KPPOXNOSCLMGD \
  | 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: ee05a8d613f258ff29ef75dae9096c30ec7b3b200e3f382e7d41f98d51dc90f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "012f6fbe4f84b19e53e061fd107a4ed1264b318c91fbe3ea6977194aa9c2895b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2018-06-09T02:54:25Z",
    "title_canon_sha256": "d590e492ad214420ca6d977ddeb5343160de81fac654c0e88e377fb23b3c2c30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.03400",
    "kind": "arxiv",
    "version": 1
  }
}