Pith Number

pith:EBGHUBJL

pith:2008:EBGHUBJLWLHJWFRVSHJQLBOGCK

not attested not anchored not stored refs pending

Boundary states and edge currents for free fermions

Marianne Leitner, Werner Nahm

arxiv:0808.1497 v2 · 2008-08-11 · 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{EBGHUBJLWLHJWFRVSHJQLBOGCK}

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	2026-05-18T00:44:03.857472Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

204c7a052bb2ce9b163591d30585c612b414b6ac766bd820b8aca17ad1cfdb75

Aliases

arxiv: 0808.1497 · arxiv_version: 0808.1497v2 · doi: 10.48550/arxiv.0808.1497 · pith_short_12: EBGHUBJLWLHJ · pith_short_16: EBGHUBJLWLHJWFRV · pith_short_8: EBGHUBJL

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/EBGHUBJLWLHJWFRVSHJQLBOGCK \
  | 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: 204c7a052bb2ce9b163591d30585c612b414b6ac766bd820b8aca17ad1cfdb75

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87dd821a38a1ec26b2382de8ca24562d7537d7e68938cd32dd9f81a99d45360c",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2008-08-11T11:46:55Z",
    "title_canon_sha256": "ce53f40dc0549d05e46765a7bf4a640a5a13c436f9edd4b3b0c8c89269220dfb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0808.1497",
    "kind": "arxiv",
    "version": 2
  }
}