Pith Number

pith:6VWYEBXZ

pith:2025:6VWYEBXZWUPJTEWN2J6UZB5KD3

not attested not anchored not stored refs pending

Improved finite-size analysis for measurement-device-independent quantum digital signature

Chun-Hui Zhang, Jia-Li Zhu, Qin Wang, Yue-Ying Wang

arxiv:2501.04957 v1 · 2025-01-09 · 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{6VWYEBXZWUPJTEWN2J6UZB5KD3}

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	2026-07-05T09:58:49.150466Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f56d8206f9b51e9992cdd27d4c87aa1ee9b4e85adbc9f6d2196f0d0a85d37582

Aliases

arxiv: 2501.04957 · arxiv_version: 2501.04957v1 · doi: 10.48550/arxiv.2501.04957 · pith_short_12: 6VWYEBXZWUPJ · pith_short_16: 6VWYEBXZWUPJTEWN · pith_short_8: 6VWYEBXZ

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/6VWYEBXZWUPJTEWN2J6UZB5KD3 \
  | 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: f56d8206f9b51e9992cdd27d4c87aa1ee9b4e85adbc9f6d2196f0d0a85d37582

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ac50d22dd3111d9f36a9ca328d6311e5b99a8499f61931dee48bfd87ecce861",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-01-09T04:18:54Z",
    "title_canon_sha256": "cfcdd1d0ed0ed3f657f3332822cf12c3a3a4c3420cf9c93271ba3a611d2d5a3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.04957",
    "kind": "arxiv",
    "version": 1
  }
}