Pith Number

pith:NHF7IVBO

pith:2013:NHF7IVBOTYJBDVCAPVAQMMBPFE

not attested not anchored not stored refs pending

Absence of helical surface states in bulk semimetals with broken inversion symmetry

Carmine Ortix, Jeroen van den Brink, J\"orn W. F. Venderbos, Roland Hayn

arxiv:1307.2698 v1 · 2013-07-10 · 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{NHF7IVBOTYJBDVCAPVAQMMBPFE}

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	2026-05-18T01:48:52.416287Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

69cbf4542e9e1211d4407d4106302f29050e982d0ed8c41226183fc6351b162c

Aliases

arxiv: 1307.2698 · arxiv_version: 1307.2698v1 · doi: 10.48550/arxiv.1307.2698 · pith_short_12: NHF7IVBOTYJB · pith_short_16: NHF7IVBOTYJBDVCA · pith_short_8: NHF7IVBO

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/NHF7IVBOTYJBDVCAPVAQMMBPFE \
  | 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: 69cbf4542e9e1211d4407d4106302f29050e982d0ed8c41226183fc6351b162c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04eac9526826a6bb8d34e3a80b4417e52fc4c7719880c36ab25cbf6811c4899e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2013-07-10T07:05:11Z",
    "title_canon_sha256": "325fff9bf08c91ec858835bb072d1f5195d425db3927a370f584910ad1e25bb3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.2698",
    "kind": "arxiv",
    "version": 1
  }
}