Pith Number

pith:ONTQI35Y

pith:2018:ONTQI35YHMQ2P4DQJJK5GIJC3U

not attested not anchored not stored refs pending

Exceptional Points of Degeneracy Induced by Linear Time-Periodic Variation Hamidreza

Ahmed F. Abdelshafy, Filippo Capolino, Hamidreza Kazemi, Mohamed Y. Nada, Tarek Mealy

arxiv:1804.01075 v3 · 2018-04-03 · physics.app-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{ONTQI35YHMQ2P4DQJJK5GIJC3U}

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	2026-05-17T23:56:48.167742Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7367046fb83b21a7f0704a55d32122dd1c6000cf97358629e846c32575ca3885

Aliases

arxiv: 1804.01075 · arxiv_version: 1804.01075v3 · doi: 10.48550/arxiv.1804.01075 · pith_short_12: ONTQI35YHMQ2 · pith_short_16: ONTQI35YHMQ2P4DQ · pith_short_8: ONTQI35Y

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/ONTQI35YHMQ2P4DQJJK5GIJC3U \
  | 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: 7367046fb83b21a7f0704a55d32122dd1c6000cf97358629e846c32575ca3885

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "849bace6bea35d355254d529b65ab3248ff80b4b4f2a4384171af94220dd370a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2018-04-03T17:39:32Z",
    "title_canon_sha256": "c22c79038f67c9c6344e1d00bb3e319b55e675259a89fe204c103e1b1f1372a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.01075",
    "kind": "arxiv",
    "version": 3
  }
}