Pith Number

pith:3TSZDH4P

pith:2009:3TSZDH4PTWQWTI7DQVMRXS5DO6

not attested not anchored not stored refs pending

Semi - Riemannian Geometry with Nonholonomic Constraints

Anna Korolko, Irina Markina

arxiv:0901.1477 v1 · 2009-01-11 · math.DG · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3TSZDH4PTWQWTI7DQVMRXS5DO6}

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	2026-07-04T15:36:00.595052Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dce5919f8f9da169a3e385591bcba3779bb2dd30f61ad762106c7809c3b45951

Aliases

arxiv: 0901.1477 · arxiv_version: 0901.1477v1 · doi: 10.48550/arxiv.0901.1477 · pith_short_12: 3TSZDH4PTWQW · pith_short_16: 3TSZDH4PTWQWTI7D · pith_short_8: 3TSZDH4P

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/3TSZDH4PTWQWTI7DQVMRXS5DO6 \
  | 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: dce5919f8f9da169a3e385591bcba3779bb2dd30f61ad762106c7809c3b45951

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "713820bcfb32c2ee956df95ecbb51edad054b8603f355feb62691df996d95826",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2009-01-11T22:11:18Z",
    "title_canon_sha256": "31c0a53437e30049158c7bd62eaee869595e29e525f1c2e32253d318d3fffe16"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.1477",
    "kind": "arxiv",
    "version": 1
  }
}