Pith Number

pith:EBNIT4OH

pith:2015:EBNIT4OHQR5J4J3NVPWSVCKOYD

not attested not anchored not stored refs pending

Semichirals and Four Dimensional Geometry

Ulf Lindstr\"om

arxiv:1505.01360 v1 · 2015-05-06 · hep-th · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EBNIT4OHQR5J4J3NVPWSVCKOYD}

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	2026-05-18T02:16:49.633925Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

205a89f1c7847a9e276dabed2a894ec0d72842fd117a231b677535fc83ef1f52

Aliases

arxiv: 1505.01360 · arxiv_version: 1505.01360v1 · doi: 10.48550/arxiv.1505.01360 · pith_short_12: EBNIT4OHQR5J · pith_short_16: EBNIT4OHQR5J4J3N · pith_short_8: EBNIT4OH

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/EBNIT4OHQR5J4J3NVPWSVCKOYD \
  | 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: 205a89f1c7847a9e276dabed2a894ec0d72842fd117a231b677535fc83ef1f52

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7f6e467e4b9409665fc1dbcba97e7056ed9b13a725a2ab91de466d1e5f4d3d8",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2015-05-06T13:40:17Z",
    "title_canon_sha256": "3f7cf88253914910055a8765497d4369629f49796665f1dcd48d59c2543f660e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.01360",
    "kind": "arxiv",
    "version": 1
  }
}