Pith Number

pith:RP7KW4HW

pith:2018:RP7KW4HWSUPCMLCQFJ43TW3PW3

not attested not anchored not stored refs pending

Maximum likelihood quantum state tomography is inadmissible

Christopher Ferrie, Robin Blume-Kohout

arxiv:1808.01072 v1 · 2018-08-03 · quant-ph · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RP7KW4HWSUPCMLCQFJ43TW3PW3}

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.

Cited by

2 papers in Pith

Entanglement Certification $-$ From Theory to Experiment

Optical Quantum Mixed-State Reconstruction With Multiple Deep Learning Approaches

Receipt and verification

First computed	2026-05-18T00:08:59.126678Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8bfeab70f6951e262c502a79b9db6fb6d0e68ab0f43f745a7fceca534e024411

Aliases

arxiv: 1808.01072 · arxiv_version: 1808.01072v1 · doi: 10.48550/arxiv.1808.01072 · pith_short_12: RP7KW4HWSUPC · pith_short_16: RP7KW4HWSUPCMLCQ · pith_short_8: RP7KW4HW

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/RP7KW4HWSUPCMLCQFJ43TW3PW3 \
  | 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: 8bfeab70f6951e262c502a79b9db6fb6d0e68ab0f43f745a7fceca534e024411

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c5245baa4527e0eb89e0d683320c8343f062994bd6792315fc184c7f52cd79f",
    "cross_cats_sorted": [
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-08-03T02:45:40Z",
    "title_canon_sha256": "2df9253b68d75999d299a146295e4f76f8a1256cbe6673698cdbe19e51e28f69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.01072",
    "kind": "arxiv",
    "version": 1
  }
}