Pith Number

pith:NNF2FFY4

pith:2019:NNF2FFY4MQZ3HWRGXNBOD4FHQ5

not attested not anchored not stored refs pending

Termination Dependent Topological Surface States in Nodal Loop Semimetal HfP2

Cheng-Yi Huang, Christopher Sims, Dariusz Kaczorowski, Firoza Kabir, Gyanendra Dhakal, Hsin Lin, Hugo Aramberri, Klauss Dimitri, Madhab Neupane, M. Mofazzel Hosen, Nicholas Kioussis, Sabin Regmi, Tay-Rong Chang, Xiaoting Zhou

arxiv:1906.09642 v1 · 2019-06-23 · cond-mat.mes-hall

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NNF2FFY4MQZ3HWRGXNBOD4FHQ5}

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	2026-07-05T01:02:02.757827Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b4ba2971c6433b3da26bb42e1f0a7877a4cd96d009665dfdc2c6d1b181fc179

Aliases

arxiv: 1906.09642 · arxiv_version: 1906.09642v1 · doi: 10.48550/arxiv.1906.09642 · pith_short_12: NNF2FFY4MQZ3 · pith_short_16: NNF2FFY4MQZ3HWRG · pith_short_8: NNF2FFY4

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/NNF2FFY4MQZ3HWRGXNBOD4FHQ5 \
  | 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: 6b4ba2971c6433b3da26bb42e1f0a7877a4cd96d009665dfdc2c6d1b181fc179

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0dfeab00a941ac085154530ce07b3750dcedfb8c14b77eda133c54fd4d922e5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2019-06-23T20:09:58Z",
    "title_canon_sha256": "e2c0a434d8d3088941228a9f8ff828854172b83f6ec6b100e094707e01c4f712"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.09642",
    "kind": "arxiv",
    "version": 1
  }
}