Pith Number

pith:XQSXSXEH

pith:2009:XQSXSXEHRXDOVVEZ5JLRJ3JR4D

not attested not anchored not stored refs pending

Quantum states made to measure

Ian A. Walmsley, Konrad Banaszek, Rafal Demkowicz-Dobrzanski

arxiv:0912.4092 v1 · 2009-12-21 · 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{XQSXSXEHRXDOVVEZ5JLRJ3JR4D}

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	2026-05-18T02:10:15.123374Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc25795c878dc6ead499ea5714ed31e0c637fb0c929c59cf18857e54f1409832

Aliases

arxiv: 0912.4092 · arxiv_version: 0912.4092v1 · doi: 10.48550/arxiv.0912.4092 · pith_short_12: XQSXSXEHRXDO · pith_short_16: XQSXSXEHRXDOVVEZ · pith_short_8: XQSXSXEH

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/XQSXSXEHRXDOVVEZ5JLRJ3JR4D \
  | 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: bc25795c878dc6ead499ea5714ed31e0c637fb0c929c59cf18857e54f1409832

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f75ea159e58d0a28e4f55393d3c77810eb73836b94420b8ecb37ec97f4d8f257",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-12-21T08:03:42Z",
    "title_canon_sha256": "87f8cd2cf1bc22b20f8bb86d4a62a8b41746840ba2ca6b370dda9fb65573e1aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.4092",
    "kind": "arxiv",
    "version": 1
  }
}