Pith Number

pith:PKNT5J3Z

pith:2014:PKNT5J3ZW7BVQW6IKTO7IEY2BF

not attested not anchored not stored refs pending

Pure quasifree states of the Dirac field from the fermionic projector

Benjamin Lang, Christopher J. Fewster

arxiv:1408.1645 v2 · 2014-08-07 · 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{PKNT5J3ZW7BVQW6IKTO7IEY2BF}

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	2026-05-18T01:07:54.267976Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a9b3ea779b7c3585bc854ddf4131a0967dd57b842d8c40af973ff18d2ab57f1

Aliases

arxiv: 1408.1645 · arxiv_version: 1408.1645v2 · doi: 10.48550/arxiv.1408.1645 · pith_short_12: PKNT5J3ZW7BV · pith_short_16: PKNT5J3ZW7BVQW6I · pith_short_8: PKNT5J3Z

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/PKNT5J3ZW7BVQW6IKTO7IEY2BF \
  | 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: 7a9b3ea779b7c3585bc854ddf4131a0967dd57b842d8c40af973ff18d2ab57f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ca9d606c5dab6fb54e0272ab640e9fbe9f4dd6c994592afbd9509687ccf8217",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2014-08-07T16:31:05Z",
    "title_canon_sha256": "df1bf734ded2fa3c44c7180c2153f8cc8d72390c0692de4d4527327e447d1897"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.1645",
    "kind": "arxiv",
    "version": 2
  }
}