Pith Number

pith:EEOVKXGW

pith:2019:EEOVKXGWM57F4CVTN5FBFYWYY4

not attested not anchored not stored refs pending

Curves orthogonal to a vector field in Euclidean spaces

Gilson S. Ferreira Jr, Luiz C. B. da Silva

arxiv:1908.02834 v3 · 2019-08-07 · 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{EEOVKXGWM57F4CVTN5FBFYWYY4}

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	2026-07-05T04:59:36.869253Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

211d555cd6677e5e0ab36f4a12e2d8c71adb2516a80921ca94ea125033a56161

Aliases

arxiv: 1908.02834 · arxiv_version: 1908.02834v3 · doi: 10.48550/arxiv.1908.02834 · pith_short_12: EEOVKXGWM57F · pith_short_16: EEOVKXGWM57F4CVT · pith_short_8: EEOVKXGW

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/EEOVKXGWM57F4CVTN5FBFYWYY4 \
  | 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: 211d555cd6677e5e0ab36f4a12e2d8c71adb2516a80921ca94ea125033a56161

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac6d9eb4d8b0b0276db4bb0b33540311f40f6d7f10fce429e267fe70458f8404",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2019-08-07T20:58:44Z",
    "title_canon_sha256": "ddb749e21ece285f89532e547e80ef1f004d82bba516e2ab19cb0c3915a855c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.02834",
    "kind": "arxiv",
    "version": 3
  }
}