Pith Number

pith:KWCJM2BH

pith:2019:KWCJM2BH6SQ7FYXKIVFOCTVQ4X

not attested not anchored not stored refs pending

Circles in self dual symmetric R-spaces

Marcos Salvai

arxiv:1902.01467 v1 · 2019-02-04 · 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{KWCJM2BH6SQ7FYXKIVFOCTVQ4X}

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	2026-05-17T23:54:47.625974Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5584966827f4a1f2e2ea454ae14eb0e5d17c4f786fe30affc7c28d920e937b1c

Aliases

arxiv: 1902.01467 · arxiv_version: 1902.01467v1 · doi: 10.48550/arxiv.1902.01467 · pith_short_12: KWCJM2BH6SQ7 · pith_short_16: KWCJM2BH6SQ7FYXK · pith_short_8: KWCJM2BH

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/KWCJM2BH6SQ7FYXKIVFOCTVQ4X \
  | 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: 5584966827f4a1f2e2ea454ae14eb0e5d17c4f786fe30affc7c28d920e937b1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0729bac5bb71aea091b00456bc641e4526a24a14b4518e0fd48acd47ef7f2f7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2019-02-04T21:39:32Z",
    "title_canon_sha256": "af83f52414f90907d0fbaffdda2006129a060ab274087e0e876423b95f844301"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.01467",
    "kind": "arxiv",
    "version": 1
  }
}