Pith Number

pith:5KBVNQL3

pith:2025:5KBVNQL3RKDWDXLEAXSHXUGAJZ

not attested not anchored not stored refs pending

Long-time storage of a decoherence-free subspace logical qubit in a dual-type quantum memory

B. X. Qi, C. X. Huang, C. Zhang, J. Y. Ma, L. He, L. M. Duan, L. Zhang, P. Y. Hou, R. Yao, W. Q. Lian, W. X. Guo, Y. F. Pu, Y. K. Wu, Y. L. Xu, Y. Y. Chen, Z. B. Cui, Z. C. Zhou

arxiv:2507.13320 v1 · 2025-07-17 · 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{5KBVNQL3RKDWDXLEAXSHXUGAJZ}

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	2026-07-05T11:38:59.144567Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea8356c17b8a8761dd6405e47bd0c04e63f47ec23f13dfb8ca725db6b853a8bf

Aliases

arxiv: 2507.13320 · arxiv_version: 2507.13320v1 · doi: 10.48550/arxiv.2507.13320 · pith_short_12: 5KBVNQL3RKDW · pith_short_16: 5KBVNQL3RKDWDXLE · pith_short_8: 5KBVNQL3

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/5KBVNQL3RKDWDXLEAXSHXUGAJZ \
  | 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: ea8356c17b8a8761dd6405e47bd0c04e63f47ec23f13dfb8ca725db6b853a8bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f781e9f572fcc89dc2a8ca6ff000b785e08714245966cc81c344f6eff79532d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-07-17T17:40:22Z",
    "title_canon_sha256": "958ad51fb73bb1188916a219ff66d86681f4e519c98bd562e53b9d5d02192f41"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.13320",
    "kind": "arxiv",
    "version": 1
  }
}