Pith Number

pith:HFHHFEIB

pith:2018:HFHHFEIBRE4LTTGNEBPNKQ3GQH

not attested not anchored not stored refs pending

Quantum speed limit for a mixed initial state

Chang-shui Yu, Shao-xiong Wu

arxiv:1810.02260 v1 · 2018-10-04 · 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{HFHHFEIBRE4LTTGNEBPNKQ3GQH}

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	2026-05-18T00:01:57.503507Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

394e7291018938b9cccd205ed5436681cbca85839d3d021fc220f82dceab9f24

Aliases

arxiv: 1810.02260 · arxiv_version: 1810.02260v1 · doi: 10.48550/arxiv.1810.02260 · pith_short_12: HFHHFEIBRE4L · pith_short_16: HFHHFEIBRE4LTTGN · pith_short_8: HFHHFEIB

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/HFHHFEIBRE4LTTGNEBPNKQ3GQH \
  | 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: 394e7291018938b9cccd205ed5436681cbca85839d3d021fc220f82dceab9f24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ff319c1dae900134751d048315a61ae41822b38d51115edca2c7f08fecffaca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-10-04T14:58:08Z",
    "title_canon_sha256": "8f3bffc47f96a7a9441bc9bfda9089c70117fcc88820877479414a2799651a21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.02260",
    "kind": "arxiv",
    "version": 1
  }
}