Pith Number

pith:42HZ7TFQ

pith:2018:42HZ7TFQ6IZQMMDJSREDJS4UAK

not attested not anchored not stored refs pending

Self-testing using only marginal information

Qiaoyan Wen, Valerio Scarani, Xinhui Li, Yu Cai, Yunguang Han

arxiv:1808.02223 v2 · 2018-08-07 · 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{42HZ7TFQ6IZQMMDJSREDJS4UAK}

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	2026-05-17T23:59:05.900186Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e68f9fccb0f233063069944834cb9402ba0084dcb05cd7100d946b74c37c9bed

Aliases

arxiv: 1808.02223 · arxiv_version: 1808.02223v2 · doi: 10.48550/arxiv.1808.02223 · pith_short_12: 42HZ7TFQ6IZQ · pith_short_16: 42HZ7TFQ6IZQMMDJ · pith_short_8: 42HZ7TFQ

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/42HZ7TFQ6IZQMMDJSREDJS4UAK \
  | 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: e68f9fccb0f233063069944834cb9402ba0084dcb05cd7100d946b74c37c9bed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d7ae676dfe0cfecc68dcb892ae5991213ebae0aa59a0f8666ba7425731c288b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-08-07T06:19:41Z",
    "title_canon_sha256": "605da4d2b453963ced147c43362b9ae883c9f0f75e6d20c35bff2acb772ceb18"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.02223",
    "kind": "arxiv",
    "version": 2
  }
}