Pith Number

pith:M45JH2GT

pith:2011:M45JH2GT6RQL5Z4CPUNMTIBA2M

not attested not anchored not stored refs pending

Some Remarks on Quantum Brachistochrone

Fabio Masillo

arxiv:1105.3332 v1 · 2011-05-17 · 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{M45JH2GT6RQL5Z4CPUNMTIBA2M}

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	2026-05-18T02:21:59.818464Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

673a93e8d3f460bee7827d1ac9a020d303391a29ffeb37e4eea8b4271d820d04

Aliases

arxiv: 1105.3332 · arxiv_version: 1105.3332v1 · doi: 10.48550/arxiv.1105.3332 · pith_short_12: M45JH2GT6RQL · pith_short_16: M45JH2GT6RQL5Z4C · pith_short_8: M45JH2GT

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/M45JH2GT6RQL5Z4CPUNMTIBA2M \
  | 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: 673a93e8d3f460bee7827d1ac9a020d303391a29ffeb37e4eea8b4271d820d04

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08e268ff165fe60d33b8c54056f0235aaa42832b1d4fd8640db246c282687eb4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-05-17T10:30:02Z",
    "title_canon_sha256": "a13bbdea93ed0de1986aeed22ce5f7940655798aa7845b259eeffc6a735bbbb7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.3332",
    "kind": "arxiv",
    "version": 1
  }
}