Pith Number

pith:EQUTJF2Z

pith:2016:EQUTJF2ZTO2EDKKVK74HME3GAB

not attested not anchored not stored refs pending

From almost (para)-complex structures to affine structures on Lie groups

Gabriela P. Ovando, Giovanni Calvaruso

arxiv:1604.08433 v1 · 2016-04-28 · 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{EQUTJF2ZTO2EDKKVK74HME3GAB}

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	2026-05-18T01:16:04.002879Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24293497599bb441a95557f8761366006fa74449a7c52876a0270f94cf94d5cc

Aliases

arxiv: 1604.08433 · arxiv_version: 1604.08433v1 · doi: 10.48550/arxiv.1604.08433 · pith_short_12: EQUTJF2ZTO2E · pith_short_16: EQUTJF2ZTO2EDKKV · pith_short_8: EQUTJF2Z

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/EQUTJF2ZTO2EDKKVK74HME3GAB \
  | 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: 24293497599bb441a95557f8761366006fa74449a7c52876a0270f94cf94d5cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "187340bfc6039957de88af2a424c0795935f233697c94f078ea8cfec9180fd2c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2016-04-28T14:24:38Z",
    "title_canon_sha256": "c90e16f1f6244e232a9087fb46ce5b63622eb69b2d8b971c2f08a6d2ee3789fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.08433",
    "kind": "arxiv",
    "version": 1
  }
}