Pith Number

pith:FR6VTCKL

pith:2019:FR6VTCKLBZYEA3W77HQSAFHDMM

not attested not anchored not stored refs pending

On the uniqueness of Barrett's solution to the fermion doubling problem in Noncommutative Geometry

Fabien Besnard

arxiv:1903.04769 v2 · 2019-03-12 · hep-th · 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{FR6VTCKLBZYEA3W77HQSAFHDMM}

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	2026-05-17T23:42:53.284551Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c7d59894b0e70406edff9e12014e3631ca138fd7d2af64217aab18bd41fd758

Aliases

arxiv: 1903.04769 · arxiv_version: 1903.04769v2 · doi: 10.48550/arxiv.1903.04769 · pith_short_12: FR6VTCKLBZYE · pith_short_16: FR6VTCKLBZYEA3W7 · pith_short_8: FR6VTCKL

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/FR6VTCKLBZYEA3W77HQSAFHDMM \
  | 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: 2c7d59894b0e70406edff9e12014e3631ca138fd7d2af64217aab18bd41fd758

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b4555ee293b087eb1a5326053e5021d8524bc557f5da6f2095a9f55fabec49e",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2019-03-12T07:53:14Z",
    "title_canon_sha256": "a4fb6910057d0c64b8f192a3a4ca150561cd9dc6bba46102b7b2b1c2e1545ae7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.04769",
    "kind": "arxiv",
    "version": 2
  }
}