pith. sign in
Pith Number

pith:ZJINZ3IV

pith:2014:ZJINZ3IVU355MNV4KXJ7AGBTQM
not attested not anchored not stored refs pending

Counterfactuality of "counterfactual" communication

Lev Vaidman

arxiv:1410.2723 v3 · 2014-10-10 · quant-ph

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{ZJINZ3IVU355MNV4KXJ7AGBTQM}

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 2026-05-18T01:32:37.681932Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

ca50dced15a6fbd636bc55d3f0183383233372692b5c1c794af7d8996ca62988

Aliases

arxiv: 1410.2723 · arxiv_version: 1410.2723v3 · doi: 10.48550/arxiv.1410.2723 · pith_short_12: ZJINZ3IVU355 · pith_short_16: ZJINZ3IVU355MNV4 · pith_short_8: ZJINZ3IV
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/ZJINZ3IVU355MNV4KXJ7AGBTQM \
  | 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: ca50dced15a6fbd636bc55d3f0183383233372692b5c1c794af7d8996ca62988
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "4544ee12a1acc6fc1bda9324ca5eab51f6ca16ba959998292c4e132ecd6253a7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-10-10T10:00:05Z",
    "title_canon_sha256": "2cf09ac39bcd189625b82b037d1dda6f72c111775d01a9230317404e86ad4f20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.2723",
    "kind": "arxiv",
    "version": 3
  }
}