Pith Number

pith:SRLA7UJW

pith:2012:SRLA7UJWTPVFDBOKPYNY5BMZOB

not attested not anchored not stored refs pending

Sharp lower bound on the curvatures of ASD connections over the cylinder

Masaki Tsukamoto

arxiv:1204.1143 v1 · 2012-04-05 · math.DG · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SRLA7UJWTPVFDBOKPYNY5BMZOB}

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	2026-05-18T03:58:36.269428Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94560fd1369bea5185ca7e1b8e85997068798540544478ca451d681beb41ab5d

Aliases

arxiv: 1204.1143 · arxiv_version: 1204.1143v1 · doi: 10.48550/arxiv.1204.1143 · pith_short_12: SRLA7UJWTPVF · pith_short_16: SRLA7UJWTPVFDBOK · pith_short_8: SRLA7UJW

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/SRLA7UJWTPVFDBOKPYNY5BMZOB \
  | 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: 94560fd1369bea5185ca7e1b8e85997068798540544478ca451d681beb41ab5d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7fbe48bdc81177be6800adb4caab2f6ffd85a152ee9b78822c35df1e74d86a57",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2012-04-05T08:14:24Z",
    "title_canon_sha256": "78844454abce70b259e0acca5e91ade96fe19780267939553038bcabdedb588b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.1143",
    "kind": "arxiv",
    "version": 1
  }
}