Pith Number

pith:6AKPZMTK

pith:2023:6AKPZMTK5ASFARZGALGKVEBMZB

not attested not anchored not stored refs pending

A Variational Approach to Unique Determinedness in Pure-state Tomography

Bei Zeng, Chao Zhang, Xuanran Zhu

arxiv:2305.10811 v2 · 2023-05-18 · 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{6AKPZMTK5ASFARZGALGKVEBMZB}

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	2026-07-05T11:19:17.650334Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f014fcb26ae82450472602ccaa902cc867f3f6c6094f0280c65feb767d96c452

Aliases

arxiv: 2305.10811 · arxiv_version: 2305.10811v2 · doi: 10.48550/arxiv.2305.10811 · pith_short_12: 6AKPZMTK5ASF · pith_short_16: 6AKPZMTK5ASFARZG · pith_short_8: 6AKPZMTK

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/6AKPZMTK5ASFARZGALGKVEBMZB \
  | 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: f014fcb26ae82450472602ccaa902cc867f3f6c6094f0280c65feb767d96c452

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07a9ff902eb5fabf28082dc0f6bc1117c94a135da72e88702491e1af6165a2b3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2023-05-18T08:49:11Z",
    "title_canon_sha256": "f79a2b57706000f83076b0599aa9b051261867254d753eb7960340abbc457fac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2305.10811",
    "kind": "arxiv",
    "version": 2
  }
}