Pith Number

pith:LFD7P2I3

pith:2020:LFD7P2I3VFXRCQGUXUY2WL3Z6C

not attested not anchored not stored refs pending

Operational definition of a quantum speed limit

Bo Liu, Haidong Yuan, Jing Liu, Mao Zhang, Yanyan Shao

arxiv:2002.10822 v2 · 2020-02-25 · 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{LFD7P2I3VFXRCQGUXUY2WL3Z6C}

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	2026-07-05T01:08:28.118176Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5947f7e91ba96f1140d4bd31ab2f79f0a7a56c704918fd1ea43a87a4cbf43f4d

Aliases

arxiv: 2002.10822 · arxiv_version: 2002.10822v2 · doi: 10.48550/arxiv.2002.10822 · pith_short_12: LFD7P2I3VFXR · pith_short_16: LFD7P2I3VFXRCQGU · pith_short_8: LFD7P2I3

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/LFD7P2I3VFXRCQGUXUY2WL3Z6C \
  | 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: 5947f7e91ba96f1140d4bd31ab2f79f0a7a56c704918fd1ea43a87a4cbf43f4d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8bd5e73399ccef6f441ff6729189cf0cbe62896fd5bdc89ac84e24e34e613d10",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2020-02-25T12:32:07Z",
    "title_canon_sha256": "435e6b92bf9b7d34fd650d7ac3bafc161daec605ee42440109714c4608050880"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.10822",
    "kind": "arxiv",
    "version": 2
  }
}