Pith Number

pith:TEXE3LDI

pith:2023:TEXE3LDI4TEPZ3725IKMLSJVXG

not attested not anchored not stored refs pending

Wigner's friend's memory and the no-signaling principle

\v{C}aslav Brukner, Veronika Baumann

arxiv:2305.15497 v2 · 2023-05-24 · 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{TEXE3LDI4TEPZ3725IKMLSJVXG}

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	2026-07-05T09:11:12.220182Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

992e4dac68e4c8fceffaea14c5c935b9951429bf8f3e5bb4ab95296775e1017f

Aliases

arxiv: 2305.15497 · arxiv_version: 2305.15497v2 · doi: 10.48550/arxiv.2305.15497 · pith_short_12: TEXE3LDI4TEP · pith_short_16: TEXE3LDI4TEPZ372 · pith_short_8: TEXE3LDI

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/TEXE3LDI4TEPZ3725IKMLSJVXG \
  | 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: 992e4dac68e4c8fceffaea14c5c935b9951429bf8f3e5bb4ab95296775e1017f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44b2cd58ed1d92bd64dbd713246befe96008adff3cdc5b1dd50ab9c50bef2f43",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2023-05-24T18:37:15Z",
    "title_canon_sha256": "593d6b1b6683e50636cac1b7b9c2765ce4a1f0941dc7eb9f28e8e748c1d45175"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2305.15497",
    "kind": "arxiv",
    "version": 2
  }
}