Pith Number

pith:Z55Z6PUA

pith:2025:Z55Z6PUAZGHM7KNEEW7BFO5B5N

not attested not anchored not stored refs pending

Cyclic quantum causal modelling with a graph separation theorem

Carla Ferradini, Victor Gitton, V. Vilasini

arxiv:2502.04168 v2 · 2025-02-06 · quant-ph · math.ST · stat.ML · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z55Z6PUAZGHM7KNEEW7BFO5B5N}

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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

2 papers in Pith

Impossibility of superluminal signalling rules out causal loops in conical spacetimes

Higher-order quantum processes respecting closed labs in a spacetime have quantum controlled causal order

Receipt and verification

First computed	2026-07-05T10:10:49.679223Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf7b9f3e80c98ecfa9a425be12bba1eb563c1f58d85831b951def0dd5f6d1b9e

Aliases

arxiv: 2502.04168 · arxiv_version: 2502.04168v2 · doi: 10.48550/arxiv.2502.04168 · pith_short_12: Z55Z6PUAZGHM · pith_short_16: Z55Z6PUAZGHM7KNE · pith_short_8: Z55Z6PUA

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/Z55Z6PUAZGHM7KNEEW7BFO5B5N \
  | 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: cf7b9f3e80c98ecfa9a425be12bba1eb563c1f58d85831b951def0dd5f6d1b9e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc2d085e1c771caf271a86cf765e02bfe18cf7c5bd91068cc9022492cf6e7ea7",
    "cross_cats_sorted": [
      "math.ST",
      "stat.ML",
      "stat.TH"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-02-06T15:51:15Z",
    "title_canon_sha256": "327ede764b32ab55d1d80a9a93798c216cb072f8de0b1a82a7ae115f32355417"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.04168",
    "kind": "arxiv",
    "version": 2
  }
}