Pith Number

pith:XI5DVZKE

pith:1999:XI5DVZKELAYQMC7FBCMMNN6TVZ

not attested not anchored not stored refs pending

Non-Contextual Hidden Variables and Physical Measurements

Adrian Kent (Centre for Quantum Computation, DAMTP, Oxford University, University of Cambridge)

arxiv:quant-ph/9906006 v3 · 1999-06-01 · 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{XI5DVZKELAYQMC7FBCMMNN6TVZ}

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	2026-07-04T15:36:42.952705Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba3a3ae5445831060be50898c6b7d3ae772633555d3ffe88cb6c2225a7d958f0

Aliases

arxiv: quant-ph/9906006 · arxiv_version: quant-ph/9906006v3 · doi: 10.48550/arxiv.quant-ph/9906006 · pith_short_12: XI5DVZKELAYQ · pith_short_16: XI5DVZKELAYQMC7F · pith_short_8: XI5DVZKE

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/XI5DVZKELAYQMC7FBCMMNN6TVZ \
  | 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: ba3a3ae5445831060be50898c6b7d3ae772633555d3ffe88cb6c2225a7d958f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a2c71477743e66408df6aca771efd2b78c09afd6f524671a0bcafd05a72b76e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "1999-06-01T17:28:58Z",
    "title_canon_sha256": "dce87e68b1476b085835c172625b4789b6ad0a167b424c5bc7e7443dea8f8aa4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/9906006",
    "kind": "arxiv",
    "version": 3
  }
}