Pith Number

pith:KMFQ5PXY

pith:2013:KMFQ5PXYDGPIRML6IXTXG3T4OG

not attested not anchored not stored refs pending

Quantum secret sharing with continuous-variable cluster states

Christian Weedbrook, Hoi-Kwan Lau

arxiv:1304.8128 v3 · 2013-04-30 · quant-ph

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

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	2026-05-18T03:10:36.818776Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

530b0ebef8199e88b17e45e7736e7c7188d087a356eb857c360161c865b3a1cb

Aliases

arxiv: 1304.8128 · arxiv_version: 1304.8128v3 · doi: 10.48550/arxiv.1304.8128 · pith_short_12: KMFQ5PXYDGPI · pith_short_16: KMFQ5PXYDGPIRML6 · pith_short_8: KMFQ5PXY

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/KMFQ5PXYDGPIRML6IXTXG3T4OG \
  | 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: 530b0ebef8199e88b17e45e7736e7c7188d087a356eb857c360161c865b3a1cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b43c7237d2fff14888141d4c16267ad78cdf250967917d8e8829ebdff2183fe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-04-30T19:35:57Z",
    "title_canon_sha256": "b31722441ec4966b1e81e41d44d9994bc1d235efbbbc0b16c613d81a62252f06"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.8128",
    "kind": "arxiv",
    "version": 3
  }
}