Pith Number

pith:N3FIQZY6

pith:2018:N3FIQZY6XHTEKPKXXDRI7GXCAM

not attested not anchored not stored refs pending

A construction of Poincar\'e-Einstein metrics of cohomogeneity one on the ball

Yoshihiko Matsumoto

arxiv:1805.04505 v2 · 2018-05-11 · 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{N3FIQZY6XHTEKPKXXDRI7GXCAM}

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	2026-05-18T00:02:22.327462Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6eca88671eb9e6453d57b8e28f9ae2033f18a69a3e395a1b01e49acbe7f2911f

Aliases

arxiv: 1805.04505 · arxiv_version: 1805.04505v2 · doi: 10.48550/arxiv.1805.04505 · pith_short_12: N3FIQZY6XHTE · pith_short_16: N3FIQZY6XHTEKPKX · pith_short_8: N3FIQZY6

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/N3FIQZY6XHTEKPKXXDRI7GXCAM \
  | 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: 6eca88671eb9e6453d57b8e28f9ae2033f18a69a3e395a1b01e49acbe7f2911f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "efae2b3ef2b47e913b978d6fe9285ff3905e65b050d05868052ce6148807b05a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2018-05-11T17:47:51Z",
    "title_canon_sha256": "3d5a49832fc51e9fcbd3a5fe3efd8a923eee7f724e77fd94adc3fe8a4786f9ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.04505",
    "kind": "arxiv",
    "version": 2
  }
}