Pith Number

pith:BFVYWBRX

pith:2018:BFVYWBRXPGD7VDKTYRI5YQ3ZPH

not attested not anchored not stored refs pending

Applications of PDEs to the study of affine surface geometry

P. Gilkey, X. Valle-Regueiro

arxiv:1806.06789 v1 · 2018-06-18 · 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{BFVYWBRXPGD7VDKTYRI5YQ3ZPH}

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	2026-05-18T00:12:59.114799Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

096b8b06377987fa8d53c451dc437979d0094ca1e55c7a7695423edc8cf39432

Aliases

arxiv: 1806.06789 · arxiv_version: 1806.06789v1 · doi: 10.48550/arxiv.1806.06789 · pith_short_12: BFVYWBRXPGD7 · pith_short_16: BFVYWBRXPGD7VDKT · pith_short_8: BFVYWBRX

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/BFVYWBRXPGD7VDKTYRI5YQ3ZPH \
  | 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: 096b8b06377987fa8d53c451dc437979d0094ca1e55c7a7695423edc8cf39432

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b24657bec12cd9f7bd8f909eee3ecb01ca9da602ff802310e2e363a915dfa026",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2018-06-18T15:55:01Z",
    "title_canon_sha256": "3596e538ea4892ce82fe361210ee6c9ff902e1f3aa57a0be40eef11b855c72a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.06789",
    "kind": "arxiv",
    "version": 1
  }
}