Pith Number

pith:HSFT3SBV

pith:2019:HSFT3SBVVZLA3WCG2X6FZX4IS4

not attested not anchored not stored refs pending

An Interaction-Free Quantum Measurement-Driven Engine

Andrew N. Jordan, Benjamin Huard, Cyril Elouard, Mordecai Waegell

arxiv:1904.09289 v2 · 2019-04-19 · 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{HSFT3SBVVZLA3WCG2X6FZX4IS4}

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	2026-07-05T01:36:48.512516Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c8b3dc835ae560dd846d5fc5cdf8897157757833b24e65b9a585651d9362b3d

Aliases

arxiv: 1904.09289 · arxiv_version: 1904.09289v2 · doi: 10.48550/arxiv.1904.09289 · pith_short_12: HSFT3SBVVZLA · pith_short_16: HSFT3SBVVZLA3WCG · pith_short_8: HSFT3SBV

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/HSFT3SBVVZLA3WCG2X6FZX4IS4 \
  | 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: 3c8b3dc835ae560dd846d5fc5cdf8897157757833b24e65b9a585651d9362b3d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2efe3dae61b1582f4c47b29a44df5ad8b2c849465ff0986d807b38514990edb2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-04-19T17:59:58Z",
    "title_canon_sha256": "f65e919ce44a7c04e3b47b2775447a30fcfff1aaec6d3fdfad381f02ca2b4555"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.09289",
    "kind": "arxiv",
    "version": 2
  }
}