Pith Number

pith:5JSNCAAV

pith:2017:5JSNCAAVVTGLSAC73XNNV4XHFF

not attested not anchored not stored refs pending

Convexity, Rigidity, and Reduction of Codimension of Isometric Immersions into Space Forms

Ronaldo F. de Lima, Rubens L. de Andrade

arxiv:1707.09686 v2 · 2017-07-31 · 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{5JSNCAAVVTGLSAC73XNNV4XHFF}

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	2026-05-18T00:20:30.207779Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea64d10015acccb9005fdddadaf2e72959926424dbdfde0a2792cf945f01466c

Aliases

arxiv: 1707.09686 · arxiv_version: 1707.09686v2 · doi: 10.48550/arxiv.1707.09686 · pith_short_12: 5JSNCAAVVTGL · pith_short_16: 5JSNCAAVVTGLSAC7 · pith_short_8: 5JSNCAAV

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/5JSNCAAVVTGLSAC73XNNV4XHFF \
  | 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: ea64d10015acccb9005fdddadaf2e72959926424dbdfde0a2792cf945f01466c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c1d6e03c1ec4206127cdb62b5e0b4676ec8c13b21f937f2210a586741722c26",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2017-07-31T00:33:44Z",
    "title_canon_sha256": "05777a0a081c8d349902ddee2749d66455effa4a92a6ad749f3afb4584a4325f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.09686",
    "kind": "arxiv",
    "version": 2
  }
}