Pith Number

pith:RAK43NRG

pith:2011:RAK43NRGTDANOOBL7VYPN66QKZ

not attested not anchored not stored refs pending

Knowledge and ignorance in incomplete quantum state tomography

B.-G. Englert, H. Zhu, J. Rehacek, Y. S. Teo, Z. Hradil

arxiv:1102.2662 v2 · 2011-02-14 · 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{RAK43NRGTDANOOBL7VYPN66QKZ}

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	2026-05-18T04:18:34.523639Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8815cdb62698c0d7382bfd70f6fbd0567c7eaf44133a185d897f28b7699d3c95

Aliases

arxiv: 1102.2662 · arxiv_version: 1102.2662v2 · doi: 10.48550/arxiv.1102.2662 · pith_short_12: RAK43NRGTDAN · pith_short_16: RAK43NRGTDANOOBL · pith_short_8: RAK43NRG

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/RAK43NRGTDANOOBL7VYPN66QKZ \
  | 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: 8815cdb62698c0d7382bfd70f6fbd0567c7eaf44133a185d897f28b7699d3c95

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7679d69a7c6b48e99232bcf06e8510d1ec39dcb53213cc9d78fa80af6ad62743",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-02-14T01:44:08Z",
    "title_canon_sha256": "2d6210a6e472ed6f16ccf817664f879fdd4ab9d16151ede59c4ff9a150af4e72"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.2662",
    "kind": "arxiv",
    "version": 2
  }
}