Pith Number

pith:3HUBTKAX

pith:2012:3HUBTKAXD62GU6E7XJLQV7VXQA

not attested not anchored not stored refs pending

Entanglement witnesses with variable number of local measurements

Marcin Markiewicz, Ryszard Weinar, Tomasz Paterek, Wieslaw Laskowski

arxiv:1212.2194 v2 · 2012-12-10 · 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{3HUBTKAXD62GU6E7XJLQV7VXQA}

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	2026-05-18T03:15:32.493440Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d9e819a8171fb46a789fba570afeb7802945897a2bcc89035b5ddd8521aba727

Aliases

arxiv: 1212.2194 · arxiv_version: 1212.2194v2 · doi: 10.48550/arxiv.1212.2194 · pith_short_12: 3HUBTKAXD62G · pith_short_16: 3HUBTKAXD62GU6E7 · pith_short_8: 3HUBTKAX

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/3HUBTKAXD62GU6E7XJLQV7VXQA \
  | 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: d9e819a8171fb46a789fba570afeb7802945897a2bcc89035b5ddd8521aba727

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a9d2ec2cb9bd7bf6e26ac0c0e68e28777a55b383cfa449b54332a66abb2d3fda",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-12-10T20:39:00Z",
    "title_canon_sha256": "2fdbd3dcff1588b1b0fc518bd60b1f9d538651a3e22f567b1a398e70e69eec32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.2194",
    "kind": "arxiv",
    "version": 2
  }
}