Pith Number

pith:SYW5DATD

pith:2019:SYW5DATDZW5BQZU4PLL5WIS67R

not attested not anchored not stored refs pending

Affine Rigidity Without Integration

Joel Merker (LM-Orsay)

arxiv:1903.00889 v4 · 2019-03-03 · math.DG · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SYW5DATDZW5BQZU4PLL5WIS67R}

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.

Cited by

1 paper in Pith

On Differential Invariants of Parabolic Surfaces

Receipt and verification

First computed	2026-07-05T02:22:54.762347Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

962dd18263cdba18669c7ad7db225efc6d87f0e245f50a81f9199b519271c677

Aliases

arxiv: 1903.00889 · arxiv_version: 1903.00889v4 · doi: 10.48550/arxiv.1903.00889 · pith_short_12: SYW5DATDZW5B · pith_short_16: SYW5DATDZW5BQZU4 · pith_short_8: SYW5DATD

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/SYW5DATDZW5BQZU4PLL5WIS67R \
  | 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: 962dd18263cdba18669c7ad7db225efc6d87f0e245f50a81f9199b519271c677

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56686f51f21b7dc3a42b388dd28b66475cb938daeda815b56db53ee9648d712c",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2019-03-03T12:32:55Z",
    "title_canon_sha256": "cf5dd9e810fd0e0f1e612f883fd1fb070172cde75fc7966e1dbb3075f2fc7415"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.00889",
    "kind": "arxiv",
    "version": 4
  }
}