Pith Number

pith:JCUWTNIP

pith:2015:JCUWTNIPEBBHWBJSVXKR5DVFLS

not attested not anchored not stored refs pending

Near-optimal quantum tomography: estimators and bounds

Christopher Ferrie, Richard Kueng

arxiv:1503.00677 v2 · 2015-03-02 · 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{JCUWTNIPEBBHWBJSVXKR5DVFLS}

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	2026-05-18T01:24:20.253981Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

48a969b50f20427b0532add51e8ea55cb03111c7440581febce2ea2852ba204b

Aliases

arxiv: 1503.00677 · arxiv_version: 1503.00677v2 · doi: 10.48550/arxiv.1503.00677 · pith_short_12: JCUWTNIPEBBH · pith_short_16: JCUWTNIPEBBHWBJS · pith_short_8: JCUWTNIP

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/JCUWTNIPEBBHWBJSVXKR5DVFLS \
  | 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: 48a969b50f20427b0532add51e8ea55cb03111c7440581febce2ea2852ba204b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f41e31f6f09c58b18b92dfc256e121d31a8e5d50422877b3593b9cb705d7035b",
    "cross_cats_sorted": [
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-03-02T19:54:01Z",
    "title_canon_sha256": "d8c4e903304616ce8ad9f13cd0e337d377e3cb15ebd5c98369b479ae8dfaf6ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.00677",
    "kind": "arxiv",
    "version": 2
  }
}