Pith Number

pith:IPQ63V55

pith:2011:IPQ63V55JX27FI3CPXTY6367GT

not attested not anchored not stored refs pending

Reliable Quantum State Tomography

Matthias Christandl, Renato Renner

arxiv:1108.5329 v2 · 2011-08-26 · quant-ph · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IPQ63V55JX27FI3CPXTY6367GT}

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	2026-05-18T03:41:21.538860Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43e1edd7bd4df5f2a3627de78f6fdf34d12f1d94275deb0d8cd8f850c6de3505

Aliases

arxiv: 1108.5329 · arxiv_version: 1108.5329v2 · doi: 10.48550/arxiv.1108.5329 · pith_short_12: IPQ63V55JX27 · pith_short_16: IPQ63V55JX27FI3C · pith_short_8: IPQ63V55

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/IPQ63V55JX27FI3CPXTY6367GT \
  | 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: 43e1edd7bd4df5f2a3627de78f6fdf34d12f1d94275deb0d8cd8f850c6de3505

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e89fd5e88a9eb7d839219a19044ee4c081e8bcc66d677ffda802e8efa7f623a",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-08-26T15:28:24Z",
    "title_canon_sha256": "0ae118598bb461dcd78bf5655e81a1953ef468eba3857b5419a86f4f6b714123"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.5329",
    "kind": "arxiv",
    "version": 2
  }
}