Pith Number

pith:IF5CLYLN

pith:2006:IF5CLYLNIV46ID2HGQE5MUX2VF

not attested not anchored not stored refs pending

The Impossibility of the Counterfactual Computation for all Possible Outcomes

Lev Vaidman

arxiv:quant-ph/0610174 v3 · 2006-10-20 · 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{IF5CLYLNIV46ID2HGQE5MUX2VF}

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	2026-05-18T01:37:54.004988Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

417a25e16d4579e40f473409d652faa9720207d39dd5417b6cdfe19f2b9cf06a

Aliases

arxiv: quant-ph/0610174 · arxiv_version: quant-ph/0610174v3 · doi: 10.48550/arxiv.quant-ph/0610174 · pith_short_12: IF5CLYLNIV46 · pith_short_16: IF5CLYLNIV46ID2H · pith_short_8: IF5CLYLN

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/IF5CLYLNIV46ID2HGQE5MUX2VF \
  | 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: 417a25e16d4579e40f473409d652faa9720207d39dd5417b6cdfe19f2b9cf06a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a414b45b872f99e29e8b53b8d559754a1f2afd99195681d9147e48df3da114d5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2006-10-20T10:43:24Z",
    "title_canon_sha256": "4e0b8db9c990cdeedd71eab82f246e9ce582c324e7c4081036d15f901a62a248"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0610174",
    "kind": "arxiv",
    "version": 3
  }
}