Pith Number

pith:7E7OQRON

pith:2014:7E7OQRONTRAHDXK453F7BUB3BY

not attested not anchored not stored refs pending

Reliable experimental quantification of bipartite entanglement without reference frames

Anna Pappa, Boris Bourdoncle, Damian Markham, Eleni Diamanti, Iordanis Kerenidis, Thomas Lawson

arxiv:1407.8408 v3 · 2014-07-31 · 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{7E7OQRONTRAHDXK453F7BUB3BY}

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	2026-05-18T01:42:26.759707Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f93ee845cd9c4071dd5ceecbf0d03b0e0fb58d1e1650e8e1c3cfa5286432c4cd

Aliases

arxiv: 1407.8408 · arxiv_version: 1407.8408v3 · doi: 10.48550/arxiv.1407.8408 · pith_short_12: 7E7OQRONTRAH · pith_short_16: 7E7OQRONTRAHDXK4 · pith_short_8: 7E7OQRON

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/7E7OQRONTRAHDXK453F7BUB3BY \
  | 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: f93ee845cd9c4071dd5ceecbf0d03b0e0fb58d1e1650e8e1c3cfa5286432c4cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "181296a06c384486c9c2f1c44054467415106f1d2ff68540953d486481c20d48",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-07-31T13:37:47Z",
    "title_canon_sha256": "3c028427a440d178d94ccc0388185b7a738f7fb9bb1a42c3ff67d53c69d8606b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.8408",
    "kind": "arxiv",
    "version": 3
  }
}