Pith Number

pith:TQKBQYRV

pith:2015:TQKBQYRVWRILIRU3DZ7DA2NJMX

not attested not anchored not stored refs pending

Notes on topological insulators

Birgit Wehefritz-Kaufmann, Dan Li, Ralph M. Kaufmann

arxiv:1501.02874 v4 · 2015-01-13 · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TQKBQYRVWRILIRU3DZ7DA2NJMX}

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	2026-05-18T00:54:04.850929Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c14186235b450b4469b1e7e3069a965e06c53b73ef5a29fa0fb643db00a3eb5

Aliases

arxiv: 1501.02874 · arxiv_version: 1501.02874v4 · doi: 10.48550/arxiv.1501.02874 · pith_short_12: TQKBQYRVWRIL · pith_short_16: TQKBQYRVWRILIRU3 · pith_short_8: TQKBQYRV

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/TQKBQYRVWRILIRU3DZ7DA2NJMX \
  | 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: 9c14186235b450b4469b1e7e3069a965e06c53b73ef5a29fa0fb643db00a3eb5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6cfc43a32cd0c9ae7967ac5c6d1f001f648aa2cec79f47fae1c141116e5ea135",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2015-01-13T03:09:00Z",
    "title_canon_sha256": "465e2485fc17cff929deefddbaa774e028aa3cc3fe61c112d4345846ea5bc19c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.02874",
    "kind": "arxiv",
    "version": 4
  }
}