Pith Number

pith:JIHRGV6Q

pith:2017:JIHRGV6QMTCOQ4MRKVNEDJDRR7

not attested not anchored not stored refs pending

Positive scalar curvature with skeleton singularities

Chao Li, Christos Mantoulidis

arxiv:1708.08211 v3 · 2017-08-28 · 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{JIHRGV6QMTCOQ4MRKVNEDJDRR7}

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	2026-05-18T00:05:34.341834Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a0f1357d064c4e87191555a41a4718fe85872d88cc81fb941f10e1cb150e48c

Aliases

arxiv: 1708.08211 · arxiv_version: 1708.08211v3 · doi: 10.48550/arxiv.1708.08211 · pith_short_12: JIHRGV6QMTCO · pith_short_16: JIHRGV6QMTCOQ4MR · pith_short_8: JIHRGV6Q

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/JIHRGV6QMTCOQ4MRKVNEDJDRR7 \
  | 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: 4a0f1357d064c4e87191555a41a4718fe85872d88cc81fb941f10e1cb150e48c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4961c338f1f0fc2b28af337600409c541b98329ff68122841fdde9ff8e1b964",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2017-08-28T07:01:45Z",
    "title_canon_sha256": "e863c2735c6aff5d253649e33f225fd2154a7a98b8961142cc17a375760e902d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.08211",
    "kind": "arxiv",
    "version": 3
  }
}