Pith Number

pith:47OG756D

pith:2009:47OG756DQX5ANODFUP4XSKWIRF

not attested not anchored not stored refs pending

Entanglement spectrum of topological insulators and superconductors

Lukasz Fidkowski

arxiv:0909.2654 v4 · 2009-09-14 · cond-mat.str-el

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{47OG756DQX5ANODFUP4XSKWIRF}

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	2026-05-18T03:23:57.746926Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e7dc6ff7c385fa06b865a3f9792ac889428db42dcaa94ec237128bfc12373d62

Aliases

arxiv: 0909.2654 · arxiv_version: 0909.2654v4 · doi: 10.48550/arxiv.0909.2654 · pith_short_12: 47OG756DQX5A · pith_short_16: 47OG756DQX5ANODF · pith_short_8: 47OG756D

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/47OG756DQX5ANODFUP4XSKWIRF \
  | 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: e7dc6ff7c385fa06b865a3f9792ac889428db42dcaa94ec237128bfc12373d62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "757ec921fc7e56f12537290591747a768801e6e78de1cf87027c187ca5718bdc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "2009-09-14T21:37:07Z",
    "title_canon_sha256": "d5c647782578e952ab81ad6681184b916fed5825f4e95b29dbb3bc25c68c4171"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.2654",
    "kind": "arxiv",
    "version": 4
  }
}