Pith Number

pith:A3G23RGJ

pith:2021:A3G23RGJZO3AMJNGIUPV3VDUDZ

not attested not anchored not stored refs pending

Variational quantum process tomography

Chu Guo, Junjie Wu, Pingyu Zhu, Shichuan Xue, Yang Wang, Yong Liu

arxiv:2108.02351 v1 · 2021-08-05 · 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{A3G23RGJZO3AMJNGIUPV3VDUDZ}

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	2026-07-05T04:44:40.453986Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

06cdadc4c9cbb60625a6451f5dd4741e59a9317d00a27533fa4c277110560ba9

Aliases

arxiv: 2108.02351 · arxiv_version: 2108.02351v1 · doi: 10.48550/arxiv.2108.02351 · pith_short_12: A3G23RGJZO3A · pith_short_16: A3G23RGJZO3AMJNG · pith_short_8: A3G23RGJ

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/A3G23RGJZO3AMJNGIUPV3VDUDZ \
  | 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: 06cdadc4c9cbb60625a6451f5dd4741e59a9317d00a27533fa4c277110560ba9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac017591c4314ab89111507dcf6ba9edaa277dceb5f3e0029a0233cc4be89ab3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-08-05T03:36:26Z",
    "title_canon_sha256": "0b06e6848b815057ebda48a8b115968e5f2bbd30d56c638775e1709d16c5298f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.02351",
    "kind": "arxiv",
    "version": 1
  }
}