Pith Number

pith:MS7FIQRT

pith:2018:MS7FIQRTY3PHNAQI5MSCOFTVQR

not attested not anchored not stored refs pending

Winding around Non-Hermitian Singularities: General Theory and Topological Features

Demetrios Christodoulides, Mercedeh Khajavikhan, Qi Zhong, Ramy El-Ganainy

arxiv:1805.07620 v1 · 2018-05-19 · quant-ph · 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{MS7FIQRTY3PHNAQI5MSCOFTVQR}

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	2026-05-18T00:15:09.449895Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64be544233c6de768208eb24271675847991cdae48411b6d7869c0461350a997

Aliases

arxiv: 1805.07620 · arxiv_version: 1805.07620v1 · doi: 10.48550/arxiv.1805.07620 · pith_short_12: MS7FIQRTY3PH · pith_short_16: MS7FIQRTY3PHNAQI · pith_short_8: MS7FIQRT

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/MS7FIQRTY3PHNAQI5MSCOFTVQR \
  | 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: 64be544233c6de768208eb24271675847991cdae48411b6d7869c0461350a997

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "741d33069717ec4be67c281572970a45d89fcbe26e0c4b4e52f6ae828e54c288",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-05-19T16:31:18Z",
    "title_canon_sha256": "751a0e1ff253153ff44b152da1d8f293dec69279b0cbea3717c063556a676839"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.07620",
    "kind": "arxiv",
    "version": 1
  }
}