Pith Number

pith:C4CMRKLD

pith:2017:C4CMRKLD5C4EZ7FV7L6NBOR4HO

not attested not anchored not stored refs pending

Semihierarchical quantum repeaters based on moderate lifetime quantum memories

Chuan-Feng Li, Guang-Can Guo, Xiao Liu, Yi-Lin Hua, Zong-Quan Zhou

arxiv:1701.05718 v1 · 2017-01-20 · 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{C4CMRKLD5C4EZ7FV7L6NBOR4HO}

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	2026-05-18T00:52:28.696670Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1704c8a963e8b84cfcb5fafcd0ba3c3b9986cdc83b94a39945f83e8d1aa9f3ae

Aliases

arxiv: 1701.05718 · arxiv_version: 1701.05718v1 · doi: 10.48550/arxiv.1701.05718 · pith_short_12: C4CMRKLD5C4E · pith_short_16: C4CMRKLD5C4EZ7FV · pith_short_8: C4CMRKLD

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/C4CMRKLD5C4EZ7FV7L6NBOR4HO \
  | 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: 1704c8a963e8b84cfcb5fafcd0ba3c3b9986cdc83b94a39945f83e8d1aa9f3ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80f4c93420d7361afbcc66520dd0f4a33420edc9a8fe159373404c939e46abda",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2017-01-20T08:05:15Z",
    "title_canon_sha256": "89b3cbb72597d3750b2d2793ccd7b7b51967edadf9e59c4ddf8971153b118369"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.05718",
    "kind": "arxiv",
    "version": 1
  }
}