Pith Number

pith:PSMQM7HX

pith:2018:PSMQM7HXJ35EEFPXV7H3TEP5PI

not attested not anchored not stored refs pending

Greatest Lower Bounds on Ricci Curvature for Fano $T$-manifolds of Complexity $1$

Jacob Cable

arxiv:1803.10672 v2 · 2018-03-28 · 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{PSMQM7HXJ35EEFPXV7H3TEP5PI}

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	2026-05-18T00:04:17.489581Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c99067cf74efa4215f7afcfb991fd7a0f38e63e8e27698b0fcca091a53e18a0

Aliases

arxiv: 1803.10672 · arxiv_version: 1803.10672v2 · doi: 10.48550/arxiv.1803.10672 · pith_short_12: PSMQM7HXJ35E · pith_short_16: PSMQM7HXJ35EEFPX · pith_short_8: PSMQM7HX

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/PSMQM7HXJ35EEFPXV7H3TEP5PI \
  | 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: 7c99067cf74efa4215f7afcfb991fd7a0f38e63e8e27698b0fcca091a53e18a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "251873b57dc3abc280b832012f364e1ff49d4f783fd5dc6532985dbda87d8fb4",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2018-03-28T15:16:10Z",
    "title_canon_sha256": "7d770e70629b5386ebfc6d80aca9e9e2478047ca84e2dcb8ebdedb83ce53d699"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.10672",
    "kind": "arxiv",
    "version": 2
  }
}