Pith Number

pith:64C7MGDS

pith:2020:64C7MGDSFJL2DGSD2TKROSRDHU

not attested not anchored not stored refs pending

A dimensionality and purity measure for high-dimensional entangled states

Andrew Forbes, Feng Zhu, Hsiao-Chih Huang, Isaac Nape, Jonathan Leach, Valeria Rodr{\i}guez-Fajardo

arxiv:2005.09861 v2 · 2020-05-20 · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{64C7MGDSFJL2DGSD2TKROSRDHU}

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	2026-07-05T03:14:01.726518Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f705f618722a57a19a43d4d5174a233d2e4ae36062f2625fb926583281b8f68f

Aliases

arxiv: 2005.09861 · arxiv_version: 2005.09861v2 · doi: 10.48550/arxiv.2005.09861 · pith_short_12: 64C7MGDSFJL2 · pith_short_16: 64C7MGDSFJL2DGSD · pith_short_8: 64C7MGDS

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/64C7MGDSFJL2DGSD2TKROSRDHU \
  | 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: f705f618722a57a19a43d4d5174a233d2e4ae36062f2625fb926583281b8f68f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ae53bdddef3e5f2f5d4f2c8447787b051387103693b656cdf3bec727af1c6b3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2020-05-20T06:21:38Z",
    "title_canon_sha256": "268b7911776faca4acfbbef55ad28381965b8c7f0686f358a72ceea277050277"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.09861",
    "kind": "arxiv",
    "version": 2
  }
}