Pith Number

pith:PFZXNDY2

pith:2015:PFZXNDY2WI5OPCHXFTWYAQUTEB

not attested not anchored not stored refs pending

Quantum speed limits, coherence and asymmetry

Iman Marvian, Paolo Zanardi, Robert W. Spekkens

arxiv:1510.06474 v2 · 2015-10-22 · quant-ph · cond-mat.stat-mech · math-ph · math.MP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PFZXNDY2WI5OPCHXFTWYAQUTEB}

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.

Cited by

1 paper in Pith

Coherence Fraction

Receipt and verification

First computed	2026-05-18T01:14:02.860393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7973768f1ab23ae788f72ced804293206d188cb00a38856138282c0907c63da2

Aliases

arxiv: 1510.06474 · arxiv_version: 1510.06474v2 · doi: 10.48550/arxiv.1510.06474 · pith_short_12: PFZXNDY2WI5O · pith_short_16: PFZXNDY2WI5OPCHX · pith_short_8: PFZXNDY2

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/PFZXNDY2WI5OPCHXFTWYAQUTEB \
  | 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: 7973768f1ab23ae788f72ced804293206d188cb00a38856138282c0907c63da2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fbe750e5cf90c54acea7efd21db5a278d53dc2c80aaf2ccdc324a1d8c845a1ca",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-10-22T01:54:29Z",
    "title_canon_sha256": "bf85211865f34b1fcec33b0ea0d62821a0d8609da25c9ba83f06a08f7f008635"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.06474",
    "kind": "arxiv",
    "version": 2
  }
}