Pith Number

pith:SJYOPJ54

pith:2015:SJYOPJ543WAV26ORDXURG4CMPE

not attested not anchored not stored refs pending

Krein spectral triples and the fermionic action

Koen van den Dungen

arxiv:1505.01939 v2 · 2015-05-08 · 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{SJYOPJ543WAV26ORDXURG4CMPE}

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	2026-05-18T01:19:12.241182Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9270e7a7bcdd815d79d11de913704c79040e9ba9ea2f1bb6e65104583a7c8471

Aliases

arxiv: 1505.01939 · arxiv_version: 1505.01939v2 · doi: 10.48550/arxiv.1505.01939 · pith_short_12: SJYOPJ543WAV · pith_short_16: SJYOPJ543WAV26OR · pith_short_8: SJYOPJ54

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/SJYOPJ543WAV26ORDXURG4CMPE \
  | 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: 9270e7a7bcdd815d79d11de913704c79040e9ba9ea2f1bb6e65104583a7c8471

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7aad57458f872e0ad6b54ea1398c81d32379e922c1187a8accd9add9a28c1346",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2015-05-08T06:25:47Z",
    "title_canon_sha256": "78c8142326440afb063e01f705fe7be8d5c6da0789be4f3d98f55a20662b81c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.01939",
    "kind": "arxiv",
    "version": 2
  }
}