Pith Number

pith:YBMIRUPI

pith:2014:YBMIRUPIHVWPGPOWW2LHTQEMWS

not attested not anchored not stored refs pending

Quantum process tomography of unitary and near-unitary maps

Amir Kalev, Charles H. Baldwin, Ivan H. Deutsch

arxiv:1404.2877 v2 · 2014-04-10 · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YBMIRUPIHVWPGPOWW2LHTQEMWS}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:47:07.296507Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c05888d1e83d6cf33dd6b69679c08cb4b717704651c2a62af2866ce06ed5fcaf

Aliases

arxiv: 1404.2877 · arxiv_version: 1404.2877v2 · doi: 10.48550/arxiv.1404.2877 · pith_short_12: YBMIRUPIHVWP · pith_short_16: YBMIRUPIHVWPGPOW · pith_short_8: YBMIRUPI

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/YBMIRUPIHVWPGPOWW2LHTQEMWS \
  | 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: c05888d1e83d6cf33dd6b69679c08cb4b717704651c2a62af2866ce06ed5fcaf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03f5372c181d769ae938981efbf48d4def004c9761f459a1a55bde96863b1592",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-04-10T17:06:31Z",
    "title_canon_sha256": "2ebb0aebf015539a89a01726181313c523e3681834c1b9d36114a430d0bcb71a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.2877",
    "kind": "arxiv",
    "version": 2
  }
}