Pith Number

pith:WJUAJHRX

pith:2020:WJUAJHRXZRZQSNRF5OAGTL2SWE

not attested not anchored not stored refs pending

Reliable coherent optical memory based on a laser-written waveguide

Chao Liu, Chuan-Feng Li, Guang-Can Guo, Jian-Yin Huang, Liang Zheng, Ming Jin, Pei-Yun Li, Tao Tu, Tian-Shu Yang, Tian-Xiang Zhu, Xiao Liu, Yu Ma, Zong-Quan Zhou

arxiv:2002.08780 v1 · 2020-02-20 · quant-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{WJUAJHRXZRZQSNRF5OAGTL2SWE}

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	2026-07-05T00:42:38.732611Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b268049e37cc73093625eb8069af52b13930c3279ed7f61d1dc628005c199ad7

Aliases

arxiv: 2002.08780 · arxiv_version: 2002.08780v1 · doi: 10.48550/arxiv.2002.08780 · pith_short_12: WJUAJHRXZRZQ · pith_short_16: WJUAJHRXZRZQSNRF · pith_short_8: WJUAJHRX

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/WJUAJHRXZRZQSNRF5OAGTL2SWE \
  | 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: b268049e37cc73093625eb8069af52b13930c3279ed7f61d1dc628005c199ad7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb9a467e160110b47bb3173b6dc3d392401c3903a839411bff3b116921e731c7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2020-02-20T14:57:37Z",
    "title_canon_sha256": "4b6d4ba88c1d1f1552db465e47ac62c2f974ff1dd7fdd848b1948b7953751932"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.08780",
    "kind": "arxiv",
    "version": 1
  }
}