Pith Number

pith:IJIJUAOK

pith:2017:IJIJUAOKSXMNYLKQLWDIJW2657

not attested not anchored not stored refs pending

Constant angle surfaces in the Lorentzian Heisenberg group

Irene I. Onnis, P. Piu

arxiv:1702.05790 v1 · 2017-02-19 · 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{IJIJUAOKSXMNYLKQLWDIJW2657}

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	2026-05-18T00:50:25.346548Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42509a01ca95d8dc2d505d8684db5eefcd5c75d292190a47338eb0351af0e270

Aliases

arxiv: 1702.05790 · arxiv_version: 1702.05790v1 · doi: 10.48550/arxiv.1702.05790 · pith_short_12: IJIJUAOKSXMN · pith_short_16: IJIJUAOKSXMNYLKQ · pith_short_8: IJIJUAOK

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/IJIJUAOKSXMNYLKQLWDIJW2657 \
  | 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: 42509a01ca95d8dc2d505d8684db5eefcd5c75d292190a47338eb0351af0e270

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ebb86ebd287071275c6b37a1f9df1d3625559ebc94645362cf2a9ae4fe38a861",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2017-02-19T20:22:10Z",
    "title_canon_sha256": "5ae278b3c389fed110abc8e9ab62131ebf4c29f12c57cfb2b3f0cd2654a4deb7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.05790",
    "kind": "arxiv",
    "version": 1
  }
}