Pith Number

pith:EPQWH5ZQ

pith:2011:EPQWH5ZQ45UCUZSQBVFHAXDV4P

not attested not anchored not stored refs pending

Witnessing the quantum discord of all the unknown states

Chengjie Zhang, C.H.Oh, Qing Chen, Sixia Yu

arxiv:1102.4710 v1 · 2011-02-23 · 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{EPQWH5ZQ45UCUZSQBVFHAXDV4P}

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	2026-05-18T04:28:07.544463Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23e163f730e7682a66500d4a705c75e3c30590b3a89f6db8e6ea3223a6765543

Aliases

arxiv: 1102.4710 · arxiv_version: 1102.4710v1 · doi: 10.48550/arxiv.1102.4710 · pith_short_12: EPQWH5ZQ45UC · pith_short_16: EPQWH5ZQ45UCUZSQ · pith_short_8: EPQWH5ZQ

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/EPQWH5ZQ45UCUZSQBVFHAXDV4P \
  | 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: 23e163f730e7682a66500d4a705c75e3c30590b3a89f6db8e6ea3223a6765543

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0c9bca7cda14eab689d5c8b7fe0337658b9ca6c106d7a29b82e7d918be486cb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-02-23T10:36:55Z",
    "title_canon_sha256": "1d741c9209d7290e2593e66553b864a87c5dda67e4feea4b2655f799e372b028"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.4710",
    "kind": "arxiv",
    "version": 1
  }
}