Pith Number

pith:AKJQZ2O3

pith:2021:AKJQZ2O3WX4XPMQRB2SKW5LNLZ

not attested not anchored not stored refs pending

Distributed quantum phase estimation with entangled photons

Feihu Xu, Jian-Wei Pan, Li Li, Li-Zheng Liu, Nai-Le Liu, Rui Zhang, Xu-Fei Yin, Yu-Ao Chen, Yue-Yang Fei, Yu-Zhe Zhang, Zheng-Da Li

arxiv:2102.11679 v1 · 2021-02-23 · 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{AKJQZ2O3WX4XPMQRB2SKW5LNLZ}

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	2026-07-05T02:19:47.220743Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02930ce9dbb5f977b2110ea4ab756d5e4e7dc1f7fb8733f9dfba2a17f729516c

Aliases

arxiv: 2102.11679 · arxiv_version: 2102.11679v1 · doi: 10.48550/arxiv.2102.11679 · pith_short_12: AKJQZ2O3WX4X · pith_short_16: AKJQZ2O3WX4XPMQR · pith_short_8: AKJQZ2O3

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/AKJQZ2O3WX4XPMQRB2SKW5LNLZ \
  | 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: 02930ce9dbb5f977b2110ea4ab756d5e4e7dc1f7fb8733f9dfba2a17f729516c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75175420d497679f08757220b96daa3d5daa974cdad7b3e9dfc5bb7f50698686",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-02-23T13:09:39Z",
    "title_canon_sha256": "395046ffe0850b96ac6f6da4ba9652826805ffbf79e483eb8a06dd0263a20308"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.11679",
    "kind": "arxiv",
    "version": 1
  }
}