Pith Number

pith:QESLM2DF

pith:2019:QESLM2DFTRFAWOOL5KXOKJU7GO

not attested not anchored not stored refs pending

Extremal k-packings in compact non-orientable surfaces

Cristian Reyes, Ernesto Girondo

arxiv:1905.13295 v3 · 2019-05-30 · math.MG · math.CV · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QESLM2DFTRFAWOOL5KXOKJU7GO}

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	2026-05-17T23:41:36.269806Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8124b668659c4a0b39cbeaaee5269f3393a04104c0044505c7fa175941cc647c

Aliases

arxiv: 1905.13295 · arxiv_version: 1905.13295v3 · doi: 10.48550/arxiv.1905.13295 · pith_short_12: QESLM2DFTRFA · pith_short_16: QESLM2DFTRFAWOOL · pith_short_8: QESLM2DF

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/QESLM2DFTRFAWOOL5KXOKJU7GO \
  | 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: 8124b668659c4a0b39cbeaaee5269f3393a04104c0044505c7fa175941cc647c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89c4d44402283de09e68583cde97b85c80349a8fba61f1d2dd46b7308620d98b",
    "cross_cats_sorted": [
      "math.CV",
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2019-05-30T20:41:47Z",
    "title_canon_sha256": "44f37bd35f88e14c47a7c0fdbc830cae072d03a8aa5a81aa223d8307467c3b17"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.13295",
    "kind": "arxiv",
    "version": 3
  }
}