Pith Number

pith:BEQUAOYJ

pith:2017:BEQUAOYJRHMFYD7KV7SWJ4NYDW

not attested not anchored not stored refs pending

On the Nonlocal Curvatures of Surfaces with or without Boundary

Brian Seguin, Paolo Podio-Guidugli, Roberto Paroni

arxiv:1701.06513 v3 · 2017-01-23 · 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{BEQUAOYJRHMFYD7KV7SWJ4NYDW}

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	2026-05-18T00:39:58.303236Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0921403b0989d85c0feaafe564f1b81d889e43533529ba3378cd90a155094a32

Aliases

arxiv: 1701.06513 · arxiv_version: 1701.06513v3 · doi: 10.48550/arxiv.1701.06513 · pith_short_12: BEQUAOYJRHMF · pith_short_16: BEQUAOYJRHMFYD7K · pith_short_8: BEQUAOYJ

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/BEQUAOYJRHMFYD7KV7SWJ4NYDW \
  | 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: 0921403b0989d85c0feaafe564f1b81d889e43533529ba3378cd90a155094a32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0654126ea516067b5cda5655b473f2e69fcfa65a5188a472ac3feebe5c029546",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2017-01-23T17:22:35Z",
    "title_canon_sha256": "3d06843a55d8ac8151ccd2c365c09aeff0275a85a5f0f719a4027654342d5ca8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.06513",
    "kind": "arxiv",
    "version": 3
  }
}