Pith Number

pith:IDSYGPLU

pith:2017:IDSYGPLUUNZFYTPTTOPV6GU5AZ

not attested not anchored not stored refs pending

The geometry of locally symmetric affine surfaces

D. D'Ascanio, P. Gilkey, P. Pisani

arxiv:1706.04958 v1 · 2017-06-15 · math.DG · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IDSYGPLUUNZFYTPTTOPV6GU5AZ}

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	2026-05-18T00:42:16.961855Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

40e5833d74a3725c4df39b9f5f1a9d0677a68671a1cb4fc868bf6b2dd548c73a

Aliases

arxiv: 1706.04958 · arxiv_version: 1706.04958v1 · doi: 10.48550/arxiv.1706.04958 · pith_short_12: IDSYGPLUUNZF · pith_short_16: IDSYGPLUUNZFYTPT · pith_short_8: IDSYGPLU

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/IDSYGPLUUNZFYTPTTOPV6GU5AZ \
  | 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: 40e5833d74a3725c4df39b9f5f1a9d0677a68671a1cb4fc868bf6b2dd548c73a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aaffeaf8da88b5d59dcec19b4e1ae6c045ffbbdf1672deb74f72af9a82d4eee7",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2017-06-15T16:43:21Z",
    "title_canon_sha256": "7935a0c013115492a37979e510ddf917aabf36868151a9d05a982db7d7064fc5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.04958",
    "kind": "arxiv",
    "version": 1
  }
}