Pith Number

pith:2FO3FUN5

pith:2010:2FO3FUN54IS5UKMGFWN4OKXBST

not attested not anchored not stored refs pending

Perfect state distinguishability and computational speedups with postselected closed timelike curves

Mark M. Wilde, Todd A. Brun

arxiv:1008.0433 v2 · 2010-08-03 · quant-ph · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2FO3FUN54IS5UKMGFWN4OKXBST}

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	2026-05-18T04:03:07.323973Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d15db2d1bde225da29862d9bc72ae194effb12c641b8083f9caea8ee9acd820a

Aliases

arxiv: 1008.0433 · arxiv_version: 1008.0433v2 · doi: 10.48550/arxiv.1008.0433 · pith_short_12: 2FO3FUN54IS5 · pith_short_16: 2FO3FUN54IS5UKMG · pith_short_8: 2FO3FUN5

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/2FO3FUN54IS5UKMGFWN4OKXBST \
  | 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: d15db2d1bde225da29862d9bc72ae194effb12c641b8083f9caea8ee9acd820a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae2fae56a341c0308cd23cc80dd65d135e97bc826642bf3294f2dc398b8d94ec",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-08-03T00:44:33Z",
    "title_canon_sha256": "9ab1b11445f375aecf13ed250c5074e74038517e51d76ef1e687454ae03a8935"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.0433",
    "kind": "arxiv",
    "version": 2
  }
}