Pith Number

pith:HHRG2CK5

pith:2016:HHRG2CK5SSK4QW3AEGXE2SDHG3

not attested not anchored not stored refs pending

Flat vector bundles and open coverings

Huitao Feng, Weiping Zhang

arxiv:1603.07248 v3 · 2016-03-23 · math.DG · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HHRG2CK5SSK4QW3AEGXE2SDHG3}

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	2026-05-18T00:34:44.889627Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39e26d095d9495c85b6021ae4d486736f404845aea0f6ac8689ae2f50c2723ba

Aliases

arxiv: 1603.07248 · arxiv_version: 1603.07248v3 · doi: 10.48550/arxiv.1603.07248 · pith_short_12: HHRG2CK5SSK4 · pith_short_16: HHRG2CK5SSK4QW3A · pith_short_8: HHRG2CK5

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/HHRG2CK5SSK4QW3AEGXE2SDHG3 \
  | 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: 39e26d095d9495c85b6021ae4d486736f404845aea0f6ac8689ae2f50c2723ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15be718323481fad70a02d41e7399861f502f54feea49820615b5ce0bd03ec95",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2016-03-23T15:53:07Z",
    "title_canon_sha256": "a73beb73dd587279a2632b525620b7bd9ca35e025a107c68fe7c2c4c90abcf49"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.07248",
    "kind": "arxiv",
    "version": 3
  }
}