Pith Number

pith:X54ZU7SN

pith:2013:X54ZU7SNK2SZRT4X2QOQHP3C2G

not attested not anchored not stored refs pending

Adaptive quantum state tomography improves accuracy quadratically

A.M. Steinberg, Ardavan Darabi, Chris Ferrie, D.H. Mahler, Lee A. Rozema, Robin Blume-Kohout

arxiv:1303.0436 v2 · 2013-03-02 · 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{X54ZU7SNK2SZRT4X2QOQHP3C2G}

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	2026-05-18T03:08:27.110447Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf799a7e4d56a598cf97d41d03bf62d19dd95e5513e0512f6dcad61b8babccab

Aliases

arxiv: 1303.0436 · arxiv_version: 1303.0436v2 · doi: 10.48550/arxiv.1303.0436 · pith_short_12: X54ZU7SNK2SZ · pith_short_16: X54ZU7SNK2SZRT4X · pith_short_8: X54ZU7SN

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/X54ZU7SNK2SZRT4X2QOQHP3C2G \
  | 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: bf799a7e4d56a598cf97d41d03bf62d19dd95e5513e0512f6dcad61b8babccab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d903bb9dcf58f5531706671aed52917d33a3f28ca74f821b21b48c4cd34c4e61",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-03-02T23:41:45Z",
    "title_canon_sha256": "4ff9590635ae90b6f4b34ff95e6f6b8b42bd577e6906e6e49892c78a14c6c81c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.0436",
    "kind": "arxiv",
    "version": 2
  }
}