Pith Number

pith:AXAQ7XHJ

pith:2013:AXAQ7XHJ5TV2XZBM5JN2XNETSI

not attested not anchored not stored refs pending

Improving the quality of spatial quantum channels

Hao-Sheng Zeng, Ning Tang, Zi-Long Fan

arxiv:1306.0676 v2 · 2013-06-04 · 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{AXAQ7XHJ5TV2XZBM5JN2XNETSI}

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	2026-05-18T02:18:01.747048Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

05c10fdce9ecebabe42cea5babb49392185aa3ff79a4020264fa31896ee7a52a

Aliases

arxiv: 1306.0676 · arxiv_version: 1306.0676v2 · doi: 10.48550/arxiv.1306.0676 · pith_short_12: AXAQ7XHJ5TV2 · pith_short_16: AXAQ7XHJ5TV2XZBM · pith_short_8: AXAQ7XHJ

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/AXAQ7XHJ5TV2XZBM5JN2XNETSI \
  | 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: 05c10fdce9ecebabe42cea5babb49392185aa3ff79a4020264fa31896ee7a52a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc0b4e6473687d8fd2fcf5509da5bc5b524dc984f89f8008ad23037a04d88855",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-06-04T07:05:12Z",
    "title_canon_sha256": "8a9edbcac2caf03c6cce3251bc97e5486eb87fd6ffd114ed385856bca676f346"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.0676",
    "kind": "arxiv",
    "version": 2
  }
}