Pith Number

pith:I63QUHAF

pith:2017:I63QUHAF7LFXYLABJNSTOUUH44

not attested not anchored not stored refs pending

4-dimensional Riemannian manifolds with a harmonic 2-form of constant length

Inyoung Kim

arxiv:1711.00173 v1 · 2017-11-01 · 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{I63QUHAF7LFXYLABJNSTOUUH44}

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	2026-05-18T00:31:34.969674Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47b70a1c05facb7c2c014b65375287e72fe90d0607e8c312d4f088e7c488aaba

Aliases

arxiv: 1711.00173 · arxiv_version: 1711.00173v1 · doi: 10.48550/arxiv.1711.00173 · pith_short_12: I63QUHAF7LFX · pith_short_16: I63QUHAF7LFXYLAB · pith_short_8: I63QUHAF

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/I63QUHAF7LFXYLABJNSTOUUH44 \
  | 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: 47b70a1c05facb7c2c014b65375287e72fe90d0607e8c312d4f088e7c488aaba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea77c5b810279315a9b31dcb29acf30dfef6fec10930a222ca803becdfb93ea3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2017-11-01T02:35:23Z",
    "title_canon_sha256": "7a3fa05e9c27a909dd6346b5261f08bf1f8acb22d805d56f0001bfab2dbd4f57"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.00173",
    "kind": "arxiv",
    "version": 1
  }
}