Pith Number

pith:K7C2N4YN

pith:2017:K7C2N4YNLKDY2XJDNOHXYNBN75

not attested not anchored not stored refs pending

Single-qubit quantum memory exceeding $10$-minute coherence time

Dahyun Yum, Jing -Ning Zhang, Junhua Zhang, Kihwan Kim, L.-M. Duan, Mark Um, Ming Lyu, Shuoming An, Ye Wang

arxiv:1701.04195 v1 · 2017-01-16 · quant-ph · physics.atom-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{K7C2N4YNLKDY2XJDNOHXYNBN75}

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	2026-05-18T00:31:31.418526Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57c5a6f30d5a878d5d236b8f7c342dff42b538b0aca5114a9e8bd5a5b56e52ae

Aliases

arxiv: 1701.04195 · arxiv_version: 1701.04195v1 · doi: 10.48550/arxiv.1701.04195 · pith_short_12: K7C2N4YNLKDY · pith_short_16: K7C2N4YNLKDY2XJD · pith_short_8: K7C2N4YN

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/K7C2N4YNLKDY2XJDNOHXYNBN75 \
  | 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: 57c5a6f30d5a878d5d236b8f7c342dff42b538b0aca5114a9e8bd5a5b56e52ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8511402312ded375b10d9a8ae7af3fffaea7c65ec059cd5736a8fd02ae6c8393",
    "cross_cats_sorted": [
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2017-01-16T07:51:27Z",
    "title_canon_sha256": "b16526b90874b117cebc7d6b3a7e53f700de1f34a780130da9c11a6951d89751"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.04195",
    "kind": "arxiv",
    "version": 1
  }
}